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Industry Circles => Bryston Limited => Topic started by: CanadianMaestro on 1 Aug 2017, 11:10 am

Title: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 1 Aug 2017, 11:10 am
Hi James,

Will the DAC inside the new BP17-cubed (if ordered with a DAC) be similar to that inside the BDA-1?

It's about time balanced inputs were added!  :thumb:

Pete
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 1 Aug 2017, 11:14 am
Hi James,

Will the DAC inside the new BP17-cubed (if ordered with a DAC) be similar to that inside the BDA-1?

It's about time balanced inputs were added!  :thumb:

Pete

No the DAC in the 17 is limited to 96/24

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Grant Hill on 2 Aug 2017, 04:23 pm
Hello James,

what is now the top preamp in production? the new BP17 cubed or the BP26 with ext. power supply?

cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 2 Aug 2017, 04:28 pm
Hello James,

what is now the top preamp in production? the new BP17 cubed or the BP26 with ext. power supply?

cheers

Hi Grant

The new BP-17 Cubed has a newer design based on the patent we got on the Cubed input section so I have high hopes that it will perform better overall.

It is also fully remote controlled.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Grant Hill on 2 Aug 2017, 06:00 pm
Thank you James.

Does the B135cubed have the same patented preamp section of the BP17-3 or does it use the previous one?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 2 Aug 2017, 06:33 pm
Thank you James.

Does the B135cubed have the same patented preamp section of the BP17-3 or does it use the previous one?

Same

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: PierreB on 2 Aug 2017, 06:52 pm
Hi James,
Will there be a BP26-3 ???
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 2 Aug 2017, 06:54 pm
Hi James,
Will there be a BP26-3 ???

No - we are looking at doing a BP-26 combined with a BDA-3 as a preamp in the future.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: OTM on 2 Aug 2017, 08:18 pm
Edit
Title: Re: Bryston BP17 Cubed preamplifier
Post by: OTM on 2 Aug 2017, 08:22 pm
No - we are looking at doing a BP-26 combined with a BDA-3 as a preamp in the future.

james

I would be interested in something like that.  Same size or 2RU?
David
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 2 Aug 2017, 09:47 pm
I would be interested in something like that.  Same size or 2RU?
David

Probably 2U with a 1U separate power supply = I want to include the active crossover for our speakers in it.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: OTM on 3 Aug 2017, 01:52 am
Probably 2U with a 1U separate power supply = I want to include the active crossover for our speakers in it.

james

Just keeps getting better
David
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 3 Aug 2017, 03:00 am
Hi James,

Is the MM phono stage option the same as I have in my circa 2009 BP-26P?  If I were to upgrade to the BP-17 could I have it  reinstalled in the new BP-17?  Is there going to be a trade in incentive offered to the dealers to migrate from 26>17.  The fixed balanced output is a huge selling point for me.

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Armaegis on 3 Aug 2017, 04:13 am
Probably 2U with a 1U separate power supply = I want to include the active crossover for our speakers in it.

james


Would that be the MPS-2 power supply or a different one entirely?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: zoom25 on 3 Aug 2017, 05:26 am
Probably 2U with a 1U separate power supply = I want to include the active crossover for our speakers in it.

james

Great to hear.  :thumb:

Some other questions/suggestions (a few which I might have said in the past?):

1) Will it be a modular design. I imagined something like a BP + BDA combo in its base form, with the option to add crossovers. Keeps the price lower for people who just want the DAC and Preamp.

2) Power supply - same question as others. MPS-2 or different.

3) A pair of FIXED balanced outputs in addition to the variable output(s).

4) Remote control (I think you already said this will have remote control).

5) Volume control of the hardware analog section via ethernet (I don't know if this is a no-no from a design standpoint or even possible). Imagine having control of BDP and BDA and BP section on the same Manic Moose page!

6) Balanced Analog inputs - I think this would improve the longevity of the unit.


Can't wait to see what you guys do with it!
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Raimo on 3 Aug 2017, 06:30 am
No - we are looking at doing a BP-26 combined with a BDA-3 as a preamp in the future.

james
Why not use the best circuit in your top of the line pre amp?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Aug 2017, 09:59 am
Hi James,

Is the MM phono stage option the same as I have in my circa 2009 BP-26P?  If I were to upgrade to the BP-17 could I have it  reinstalled in the new BP-17?  Is there going to be a trade in incentive offered to the dealers to migrate from 26>17.  The fixed balanced output is a huge selling point for me.

Bill
Hi Bill

No the new MM phono stages are different in the BP-17 cubed - it is based on the new 1/3rd size phono stages we just developed.  Trade ins would be up to the dealer.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Aug 2017, 10:00 am
Would that be the MPS-2 power supply or a different one entirely?

Hi

Different one entirely as it has to drive both an analog and a digital section.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Aug 2017, 10:01 am
Great to hear.  :thumb:

Some other questions/suggestions (a few which I might have said in the past?):

1) Will it be a modular design. I imagined something like a BP + BDA combo in its base form, with the option to add crossovers. Keeps the price lower for people who just want the DAC and Preamp.

2) Power supply - same question as others. MPS-2 or different.

3) A pair of FIXED balanced outputs in addition to the variable output(s).

4) Remote control (I think you already said this will have remote control).

5) Volume control of the hardware analog section via ethernet (I don't know if this is a no-no from a design standpoint or even possible). Imagine having control of BDP and BDA and BP section on the same Manic Moose page!

6) Balanced Analog inputs - I think this would improve the longevity of the unit.


Can't wait to see what you guys do with it!

All of the above.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Aug 2017, 10:02 am
Why not use the best circuit in your top of the line pre amp?

It will be the latest circuits.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Marius on 3 Aug 2017, 10:22 am
It will be the latest circuits.

james


Wonderful! would the fixed balanced output be suited to hookup the BHA-1? #fingerscrossed...


Also, would you be able to accommodate more digital spdif inputs? The BDA3 lost to the BDA1 on that aspect, and that's what keeping at least me from upgrading just yet. And, since I would be filling 4 HDMIs already, a set of spare inputs wouldn't hurt either.


As i just posted else in AC, could it also have more balanced inputs that the Bp26 now has, and preferably at least 2 AES inputs on the DAC.


Monster of a machine of course, i know, but since your early in the design, i would think this is the time to ask ;)


Cheers,
Marius
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Aug 2017, 10:47 am

Wonderful! would the fixed balanced output be suited to hookup the BHA-1? #fingerscrossed...


Also, would you be able to accommodate more digital spdif inputs? The BDA3 lost to the BDA1 on that aspect, and that's what keeping at least me from upgrading just yet. And, since I would be filling 4 HDMIs already, a set of spare inputs wouldn't hurt either.


As i just posted else in AC, could it also have more balanced inputs that the Bp26 now has, and preferably at least 2 AES inputs on the DAC.


Monster of a machine of course, i know, but since your early in the design, i would think this is the time to ask ;)


Cheers,
Marius

Yes Monster and very, very expensive.  It will be close to a BP-17 and BDA3 combined.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Marius on 3 Aug 2017, 11:37 am
Yes Monster and very, very expensive.

james

Feared as much. Though that hasn’t kept you from designing the Sp3 before.

Would it be modular? Kind of like the fact that there still is hardly any need to update the Bp26 while my bda1 is long overdue. Having these different worlds in one box would sacrifice that adjustability to modern times if not modular.

Exciting, eagerly awaiting your new top tier amp/dac!
Marius
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 3 Aug 2017, 10:08 pm
Hi Bill

No the new MM phono stages are different in the BP-17 cubed - it is based on the new 1/3rd size phono stages we just developed.  Trade ins would be up to the dealer.

james

Thanks James.  Are you saying that the difference is just form factor and not the circuit itself and resulting performance?  The reason I'm asking is I'm considering adding the new TF-2 to my existing  BP-26 internal MM or buying a new MC phono preamp to upgrade my existing.  However if the new MM stage (both external and internal) are improved from a performance  standpoint it would make good sense in light of the expense I would encounter to consider trading or selling my BP-26/MPS-2 and currrent MC phono pre for the new BP-17 MM and the TF-2. I would also pick up the fixed balanced out and full function remote in the process.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Aug 2017, 11:38 am
FOR IMMEDIATE RELEASE

Bryston Launches BP-17³ Cubed Preamplifier

New preamp is the first to employ patented Salomie input circuit and new feature set with highly flexible input/output array

Peterborough, Ontario August, 2017

Bryston has announced the introduction of the new BP-17³ (Cubed Series) preamplifier, utilizing patented technology that debuted on the much heralded Cubed Series amplifiers. The BP-17³ also features a new expanded input/output configuration for enhanced system flexibility. Like all analog components from Bryston, the BP-17³ is covered by an industry best 20 year warranty.

Bryston’s patented super-linear, low noise input buffer jointly developed by Bryston and the late Ph.D. engineer Dr. Ioan Alexandru Salomie significantly reduces noise and distortion. The BP-17³ also has improved RF and audio frequency noise filtering to prevent unwanted anomalies on the power line from interfering even minutely with the audio signal.

The BP-17³ offers expanded input/output options, including two pairs of XLR outputs and two pairs of RCA outputs, making it possible to connect a wide variety of equipment and accommodate numerous system configurations. An RCA tape loop lets users connect a line-level processor or recording device and one of the XLR output pairs can be internally selected to have either variable (default) or fixed output enabling users to easily connect a Bryston BHA-1 or other balanced input headphone amplifier.

The BP-17³ also includes two pairs of balanced inputs and five pair RCA inputs, and can be ordered with a high-resolution internal DAC, a premium moving magnet phono stage, both DAC and phono modules or without either module installed. Users can select sources, adjust volume and more all from the optional BR-2 remote control or via RS232 connection to virtually any control ecosystem. The BP-173 is available in either black or silver, 17-inch or 19-inch (wide) faceplates.

The BP-17³ will begin shipping to authorized dealers in September, 2017 with a US MSRP of $3995.


IMAGES:

https://www.dropbox.com/sh/xcmwzp8fuj3q1gb/AABiKJbuijglWLE7YBUtTCAsa?dl=0
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Aug 2017, 11:54 am
Thanks James.  Are you saying that the difference is just form factor and not the circuit itself and resulting performance?  The reason I'm asking is I'm considering adding the new TF-2 to my existing  BP-26 internal MM or buying a new MC phono preamp to upgrade my existing.  However if the new MM stage (both external and internal) are improved from a performance  standpoint it would make good sense in light of the expense I would encounter to consider trading or selling my BP-26/MPS-2 and currrent MC phono pre for the new BP-17 MM and the TF-2. I would also pick up the fixed balanced out and full function remote in the process.

Hi

When you get to this level of performance the differences become smaller and smaller - I think I would make decisions on which preamplifier to purchase based on the feature set each offer.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 4 Aug 2017, 04:51 pm
Hi

When you get to this level of performance yes the differences become smaller and smaller - I think I would make decisions on which preamplifier to purchase based on the feature set each offer.

james

Thank you sir!  I appreciate the input. I was  just looking over my circa 2009 BR2 and am wondering how the input selection on the BP 17 3 would work as the buttons outside volume and mute are CD and DAC oriented.  Will there be a faceplate and/or code change required to make it work?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: SoundGame on 4 Aug 2017, 05:44 pm
Hi James - nice to see this has now officially been announced.  I think it will prove to be a great success given its single box configuration; new input circuitry and most impressive - fully balanced in/our circuitry.

Are there any preliminary specifications available to share?  I'm just interested in the impact of the new input stage to the overall distortion, as well, as I'm interested if the output voltage will be as high as the BP26.  This I see as a serious strength of the BP26, as its output voltage is higher than much of the competition, allowing it to be matched to just about any amplifier out there.  Will the BP-173 be the same?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Aug 2017, 07:55 pm
Thank you sir!  I appreciate the input. I was  just looking over my circa 2009 BR2 and am wondering how the input selection on the BP 17 3 would work as the buttons outside volume and mute are CD and DAC oriented.  Will there be a faceplate and/or code change required to make it work?

Hi

The Cubed BP17 will use the same code as the B135 and the BP17 - 712.

There should be a button on the BR2 that says Preamp - that will work some of the inputs as well.  We are looking at that now.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Aug 2017, 07:56 pm
Hi James - nice to see this has now officially been announced.  I think it will prove to be a great success given its single box configuration; new input circuitry and most impressive - fully balanced in/our circuitry.

Are there any preliminary specifications available to share?  I'm just interested in the impact of the new input stage to the overall distortion, as well, as I'm interested if the output voltage will be as high as the BP26.  This I see as a serious strength of the BP26, as its output voltage is higher than much of the competition, allowing it to be matched to just about any amplifier out there.  Will the BP-173 be the same?

Good questions - I will ask.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: Pundamilia on 4 Aug 2017, 09:32 pm
It would be very interesting for current BP-26 owners to know the advances (other than the input stage and BDA-3 circuitry) in the BP-17 that would make it an upgrade from the BP-26.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Aug 2017, 10:20 pm
It would be very interesting for current BP-26 owners to know the advances (other than the input stage and BDA-3 circuitry) in the BP-17 that would make it an upgrade from the BP-26.

With the BP17 Cubed it's not just the input stage that's different - the whole Class A circuitry from input to output is the new design.

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: tie_breaker on 5 Aug 2017, 03:11 am
James, what improvements can we expect to hear with BP17 Cubed compared to BP26 in terms of sound quality?
Thx..
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Xinon on 5 Aug 2017, 06:45 am
James, what improvements can we expect to hear with BP17 Cubed compared to BP26 in terms of sound quality?
Thx..
Im also interested in this question.
I like the direct sound of Bp26, and do not need/want smoother or more relaxed sound 8)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 Aug 2017, 10:42 am
Im also interested in this question.
I like the direct sound of Bp26, and do not need/want smoother or more relaxed sound 8)

Hi

I have the BP17 Cubed at home this weekend and am doing some blind tests with the 26.  Will report back.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: Bones13 on 5 Aug 2017, 08:28 pm
Congratulations on your new product release! It should be a winner.

I'm hooked on my BDA-3, and would definitely look at a BP26+BDA3 combo. Separate PSU would be extra money, but sonically a big plus.

Would it have the current (or better) HDMI board for inputs and switching?

2 channel SP-3 with 2 chassis design. I assume the MM phono and speaker crossover boards would be options, like the BP17 Cubed?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: SoundGame on 6 Aug 2017, 01:23 am
Hi

The Cubed BP17 will use the same code as the B135 and the BP17 - 712.

There should be a button on the BR2 that says Preamp - that will work some of the inputs as well.  We are looking at that now.

james

Looking forward to hearing your impressions.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: R. Daneel on 6 Aug 2017, 02:34 pm
Hi!

Okay, the BP-17³ will have a new entirely new analog circuitry but I am a little confused about the DAC. Is it going to have a BDA-3 -like DAC or is are zou keeping the internal 24/96 board based on the CS4398

Cheers
Antun
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 6 Aug 2017, 02:59 pm
Hi!

Okay, the BP-17³ will have a new entirely new analog circuitry but I am a little confused about the DAC. Is it going to have a BDA-3 -like DAC or is are zou keeping the internal 24/96 board based on the CS4398

Cheers
Antun

It will have the older DAC for now - 24/96 capable

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: R. Daneel on 6 Aug 2017, 03:17 pm
It will have the older DAC for now - 24/96 capable

james

Thank you Sir!

Cheers!
Antun
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 6 Aug 2017, 10:01 pm
Now that my interest in the BP17 cubed is at a fever pitch I'm looking at it in fine detail and am confused as to  how the Analog 1 input button serves also as the selector (or  shift  key) for the digital inputs. If you select analog 1 and don't want to shift to digital how is this accomplished?  On the back panel input 1 appears to be dual purpose serving one stereo analog connection or 2 RCA digitals.  I tried to figure this out looking at the B135 cubed manual but to no avail.  There isn't a BP17 3 manual on the website as yet.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Syncytial on 6 Aug 2017, 10:26 pm
Now that my interest in the BP17 cubed is at a fever pitch I'm looking at it in fine detail and am confused as to  how the Analog 1 input button serves also as the selector (or  shift  key) for the digital inputs. If you select analog 1 and don't want to shift to digital how is this accomplished?  On the back panel input 1 appears to be dual purpose serving one stereo analog connection or 2 RCA digitals.  I tried to figure this out looking at the B135 cubed manual but to no avail.  There isn't a BP17 3 manual on the website as yet.

If the internal DAC is fitted, in either the BP-17 or the B135, the two coax inputs for Aux 2 become digital inputs, thus the Aux 2 button no longer has an analogue Aux 2 function - it becomes a toggle for digital/analogue mode. When in digital mode, selecting D1 to D4 digital inputs is done with the buttons used for other inputs in analogue mode - look at the front and rear panel images.

Look at the diagrams with explanatory legends in the B135 manual, or the BP17 manual. I expect it'll work the same way with the BP173, supported by the labelling of the buttons and the back panel.


Syncytial.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: R. Daneel on 7 Aug 2017, 09:20 am
Hello!

Would the improvements done to cubed series amps with Dr. Salomie's input section be beneficial to BHA-1 headphone amp? Hopefully in a future BHA-2 headamp?

Best,
Antun
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 7 Aug 2017, 10:19 am
If the internal DAC is fitted, in either the BP-17 or the B135, the two coax inputs for Aux 2 become digital inputs, thus the Aux 2 button no longer has an analogue Aux 2 function - it becomes a toggle for digital/analogue mode. When in digital mode, selecting D1 to D4 digital inputs is done with the buttons used for other inputs in analogue mode - look at the front and rear panel images.

Look at the diagrams with explanatory legends in the B135 manual, or the BP17 manual. I expect it'll work the same way with the BP173, supported by the labelling of the buttons and the back panel.


Syncytial.

Good explanation - thanks

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 7 Aug 2017, 04:14 pm
If the internal DAC is fitted, in either the BP-17 or the B135, the two coax inputs for Aux 2 become digital inputs, thus the Aux 2 button no longer has an analogue Aux 2 function - it becomes a toggle for digital/analogue mode. When in digital mode, selecting D1 to D4 digital inputs is done with the buttons used for other inputs in analogue mode - look at the front and rear panel images.

Look at the diagrams with explanatory legends in the B135 manual, or the BP17 manual. I expect it'll work the same way with the BP173, supported by the labelling of the buttons and the back panel.


Syncytial.

Thanks Syncytial.  I appreciate your clarification. 
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 8 Aug 2017, 06:44 pm
Hi James,

I'm most interested in hearing about your double blind test comparing the BP's 26/17 3 over this past weekend.  If I decide to take the plunge to replace my 26 and go for the BP17 3 I'd like to do it this month to take advantage of the no cost phono stage promo. I would plan to put the TF-2 in front of it and add the BHA-1.  It's that fixed level balanced out to the  HP amp that got me started on this  :thumb:

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 8 Aug 2017, 07:53 pm
Hi Bill

I find there are a few differences between the BP26 and the new BP-17 Cubed preamplifiers.  The BP-17 Cubed circuitry is based on the new patent we received for the input stage of the new Cubed amplifiers.

The soundstage presentation is different – with the BP-26 it’s a more up-front sound with the voices or instrument tending to be at or slightly forward of the plane of the loudspeaker whereas the BP-17 Cubed has a more recessed presentation where most of the action is at the plane of the speaker and further behind.  The size of the stage  (left to right and front to back) as well as the presentation of the instruments (size and position) within the stage was very close so no major difference there I could detect. The BP-26 sounds a little ‘puncher’ in the mid-bass frequency area while the BP-17 Cubed is a little less forceful. If you like that ‘in your gut’ bass punch you may prefer the BP-26 in this area.

The part where I think the 17 excels is when a crescendo comes along – either voice of instrument. In some recordings where the vocalist or instrument goes from a low or medium volume level to a crescendo or maybe even approaching a scream with voice  the 17 never sounds strained or has any sense of glare or stridency. Sometimes I was thinking the BP-17 Cubed lacked dynamic capability but the more I listened the more I thought – no – it’s just that it is not producing any sense of overload or strain in the music when pushed. Transients in real music are huge and the ability of the BP-17 to deal with these huge shifts of level is something it handles very well.

So if I had to sum up the BP-17 in a word it would be “organic” – less hi-fi sounding. It has a very natural sound to it with no strain or glare.

Will spend some more time with the 17 going forward but so far these are my observations.

Hope this helps.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: spartana on 8 Aug 2017, 09:12 pm
James,
Thanks!

How big is the difference of the original BP17 to the cubed? More the 5% or 50% difference? Does an original BP17 owner have to get nervous about the new cubed version?

Geoffrey
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 9 Aug 2017, 12:02 am
James,
Thanks!

How big is the difference of the original BP17 to the cubed? More the 5% or 50% difference? Does an original BP17 owner have to get nervous about the new cubed version?

Geoffrey

Hi Geoffrey

The BP 17 was based on the BP-26 preamp so the differences would be similar.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 9 Aug 2017, 02:12 am
Hi Bill

I find there are a few differences between the BP26 and the new BP-17 Cubed preamplifiers.  The BP-17 Cubed circuitry is based on the new patent we received for the input stage of the new Cubed amplifiers.

The soundstage presentation is different – with the BP-26 it’s a more up-front sound with the voices or instrument tending to be at or slightly forward of the plane of the loudspeaker whereas the BP-17 Cubed has a more recessed presentation where most of the action is at the plane of the speaker and further behind.  The size of the stage  (left to right and front to back) as well as the presentation of the instruments (size and position) within the stage was very close so no major difference there I could detect. The BP-26 sounds a little ‘puncher’ in the mid-bass frequency area while the BP-17 Cubed is a little less forceful. If you like that ‘in your gut’ bass punch you may prefer the BP-26 in this area.

The part where I think the 17 excels is when a crescendo comes along – either voice of instrument. In some recordings where the vocalist or instrument goes from a low or medium volume level to a crescendo or maybe even approaching a scream with voice  the 17 never sounds strained or has any sense of glare or stridency. Sometimes I was thinking the BP-17 Cubed lacked dynamic capability but the more I listened the more I thought – no – it’s just that it is not producing any sense of overload or strain in the music when pushed. Transients in real music are huge and the ability of the BP-17 to deal with these huge shifts of level is something it handles very well.

So if I had to sum up the BP-17 in a word it would be “organic” – less hi-fi sounding. It has a very natural sound to it with no strain or glare.

Will spend some more time with the 17 going forward but so far these are my observations.

Hope this helps.

james


Thanks James!  I really appreciate your evaluation.  I am a hopeless bass head so the bass difference does concern me however the "organic", strength with transients and lack of  strain or glare sound interesting.  Glad to hear that soundstage properties are on par with the BP-26.  In my setup vocals, especially female, hover over me in front of the speaker plane and the stage goes from there all the way to and sometimes beyond the back wall.  It is often at least 1.5 tp 2m high with BP26>7BSST2>Focal Sopra 2's.  I love my BP26 which is 8 years old now and don't want to lose what I like about it just to have a fixed level balanced output for my headphone amp.  I may hold off on taking the leap and experiment with the BHA-1 balanced direct from my Esoteric K-05 vs. SE to the BHA-1 from the BP26 SE tape out.  If I find that the balanced connection makes a big difference I can reconsider then.  In the meantime hopefully some additional thoughts and impressions will become available.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Xinon on 17 Aug 2017, 05:44 pm
Only in hifi does the music sound relaxed, in real life brass instruments and snare drums makes your ears bleed.
I will keep my BP26 to an even punchier, more upfront, open, and dynamic Bryston pre comes along  :thumb:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 17 Aug 2017, 06:02 pm
Hi Folks,

A few great reviews on the new BP-17 Cubed in the works from Stereophile and Soundstage and Enjoy The Music Magazine.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 17 Aug 2017, 07:22 pm
Hi Folks,

A few great reviews on the new BP-17 Cubed in the works from Stereophile and Soundstage and Enjoy The Music Magazine.

james

Thanks  for the heads up, James.  This is just what I'm looking for and these are three of the most well known pubs in the business. As stated previously I would like to decide on this by the end of the month to get the MM phono option promo.  Any chance any of them will be available before then? Parting with my BP26 would be  a destabilizing event inn my life.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 17 Aug 2017, 07:45 pm
Thanks  for the heads up, James.  This is just what I'm looking for and these are three of the most well known pubs in the business. As stated previously I would like to decide on this by the end of the month to get the MM phono option promo.  Any chance any of them will be available before then? Parting with my BP26 would be  a destabilizing event inn my life.

Hi

I doubt you will see them for at least 2 months or more as the magazines typically want 6 week loaners.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 17 Aug 2017, 08:19 pm
Hi

I doubt you will see them for at least 2 months or more as the magazines typically want 6 week loaners.

james

Thanks James.  I'll take your word that they are "great" reviews.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 17 Aug 2017, 09:14 pm
Thanks James.  I'll take your word that they are "great" reviews.

Yes I get sneak peaks but I am sworn to secrecy.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 18 Aug 2017, 01:27 am
Yes I get sneak peaks but I am sworn to secrecy.

james
Personal integrity is the most important asset a man can carry in his bag.  Hats off to you for maintainig yours :thumb:fill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Raimo on 18 Aug 2017, 07:51 pm
Hallo James, do you have any plan on offering a digital crossover board to the BP17Cubed?
I would be interested in a 80Hz crossover, the problem is that i have a infra bass module system and need to be able to lift the lowest frequenses below 20Hz.
And also have a tilt funktion from 80Hz and down. Is this possible to implement to the software?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 18 Aug 2017, 08:16 pm
Hallo James, do you have any plan on offering a digital crossover board to the BP17Cubed?
I would be interested in a 80Hz crossover, the problem is that i have a infra bass module system and need to be able to lift the lowest frequenses below 20Hz.
And also have a tilt funktion from 80Hz and down. Is this possible to implement to the software?

Hi

No we are working on a new preamp which will allow the digital crossover to be used internally but the B_17 would need a total redesign.

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: spartana on 19 Aug 2017, 12:14 pm
Dear all,
maybe a bit off topic but yet somehow related: looked at the backside of the BR2 remote of my BP17 and found out that the used screws are exactly the same as I've been looking for for another device of mine.

No idea what these screws are. Can anybody help me? For sure they are not metric. I assume it is either 4 - 40 UNC or 4 - 48 UNF. Here in Europe these are hard to find if you do not exactly know what you are looking for. Nearly no dealers offer them.

Sorry, hope it is okay to post this question here.

BP17 is great, love mine :-)

Appreciate any help on my specific problem,

Geoffrey
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 20 Aug 2017, 10:26 am
Hi

No we are working on a new preamp which will allow the digital crossover to be used internally but the B_17 would need a total redesign.

James
Hi James can you please tell me when is this new BP 26 preamp  due and will there be any cosmetic changes from the BP26?                                                 
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 20 Aug 2017, 08:47 pm
Hi James can you please tell me when is this new BP 26 preamp  due and will there be any cosmetic changes from the BP26?                                                 

HI

At least a year away and will be 2 rack spaces high with a single rack space external power supply.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: jippo on 24 Aug 2017, 11:59 am
Dear all,
maybe a bit off topic but yet somehow related: looked at the backside of the BR2 remote of my BP17 and found out that the used screws are exactly the same as I've been looking for for another device of mine.

No idea what these screws are. Can anybody help me? For sure they are not metric. I assume it is either 4 - 40 UNC or 4 - 48 UNF. Here in Europe these are hard to find if you do not exactly know what you are looking for. Nearly no dealers offer them.

Sorry, hope it is okay to post this question here.

BP17 is great, love mine :-)

Appreciate any help on my specific problem,

Geoffrey

Hi Geoffrey, as the distributor for the Benelux I think we can help you - please send me a PM.

Hein
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 25 Aug 2017, 09:19 pm
Hi James,

Any word on Soundgame's question regarding the BP17 Cubed output voltage specs for both SE and balanced?

Thanks!
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 25 Aug 2017, 10:17 pm
Sorry nothing yet - I would assume they would be similar to our other preamps - 30 Volts Balanced and 15 Single ended.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 28 Aug 2017, 10:54 pm
Hi James

Any future plans to provide for outboard power for BP17 cubed via the MPS2 or PS3?

Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 28 Aug 2017, 11:08 pm
Hi James

Any future plans to provide for outboard power for BP17 cubed via the MPS2 or PS3?

Hi

No plans on that front.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 29 Aug 2017, 06:26 pm
Hi James,

Two final questions before I decide on moving from BP26 > BP17 Cubed:

- How do you select among the balanced output to the amp(s) and fixed balanced out to the headphone amp?

- You mentioned earlier you were "looking" at some things on the BR-2 relative to the BP17 Cubed operation.  If I order the BP17 this week with a new BR-2 will  it have whatever modifications you are looking at?

Thanks,

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 29 Aug 2017, 06:48 pm
Hi Bill,

1. The Balanced 1 and 2 outputs come factory set at Variable.  You can order the preamp to have Balanced output number 1 to be Fixed.

2. The changes in the BR-2 have to do with making it simpler - we are thinking of a different overlay on the remote but that is a ways off. The current BR2 runs the BP-17 Cubed fine but some of the labels on the buttons need to change in the future.

james


Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 29 Aug 2017, 07:37 pm
Hi Bill,

1. The Balanced 1 and 2 outputs come factory set at Variable.  You can order the preamp to have Balanced output number 1 to be Variable.

2. The changes in the BR-2 have to do with making it simpler - we are thinking of a different overlay on the remote but that is a ways off. The current BR2 runs the BP-17 Cubed fine but some of the labels on the buttons need to change in the future.

james
Thanks James, I guess I wasn't clear on my first question. Are all of the outputs always active such that if you want to listen to the headphones out of the fixed balance out you must turn down the volume to the variable balanced  and SE outputs or turn the loudspeaker amps off?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 29 Aug 2017, 07:43 pm
Thanks James, I guess I wasn't clear on my first question. Are all of the outputs always active such that if you want to listen to the headphones out of the fixed balance out you must turn down the volume to the variable balanced  and SE outputs or turn the loudspeaker amps off?

Yes the fixed output would stay fixed regardless of where the volume control was on the BP-17.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 30 Aug 2017, 07:40 pm
Hi James,

Sorry, one more question. Since the internal MM section on the BP17 cubed will be on board with the power supply will there be any compromise with noise in the circuit vs. using the BP2-20 and PS-3 or vs the BP26P/MPS-2? I read in one description the new BP17 is designed to keep all such interference in check.  A clarification would be appreciated.

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 30 Aug 2017, 08:04 pm
Hi James,

Sorry, one more question. Since the internal MM section on the BP17 cubed will be on board with the power supply will there be any compromise with noise in the circuit vs. using the BP2-20 and PS-3 or vs the BP26P/MPS-2? I read in one description the new BP17 is designed to keep all such interference in check.  A clarification would be appreciated.

Bill

Hi Bill

You try to reduce the magnetic interference as best you can with internal phono stages and with MM stages it easier than with high gain MC stages.  External phono stages eliminate the issue all together of course but add cost and connector requirements.

Its a tough call - I have not measured the the difference between our internal and our external phono stage but I have the MM stage in the BP-17 Cubed at home with the Bryston turntable and an Ortofon MM cartridge and have no issues at all. I also have the BP26 with the Bryston turntable and the external Bryston MM/MC Phono Stage with the PS3 power supply and a BENZ moving coil and it also performs very well.

Hows that for a political answer !!!

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 30 Aug 2017, 08:23 pm
Hi Bill

You try to reduce the magnetic interference as best you can with internal phono stages and with MM stages it easier than with high gain MC stages.  External phono stages eliminate the issue all together of course but add cost and connector requirements.

Its a tough call - I have not measured the the difference between our internal and our external phono stage but I have the MM stage in the BP-17 Cubed at home with the Bryston turntable and an Ortofon MM cartridge and have no issues at all. I also have the BP26 with the Bryston turntable and the external Bryston MM/MC Phono Stage with the PS3 power supply and a BENZ moving coil and it also performs very well.

Hows that for a political answer !!!

james

Skillfully  done, James.  You should  run for office! I'm just trying to make up my mind at the 11th hour whether to jump on the BP17 3 with MM promo and replace my BP26P with a change to  my existing 3rd party mm/mc phone stage in the mix.  I haven't used the BP26 MM section in the 9 years I've had the unit and was thinking that adding the TF-2 would make sense whether I keep the 26 or go to  the 17 w/mm.  The 26 with MPS-2 there is no issue.  With the 17 I would  rather pay the extra money for BP-2 20 and PS 3 than risk any compromising sound quality due to PS noise.  You have to stop providing so many choices, you're giving me shoppers block :lol:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Mike-48 on 3 Sep 2017, 03:51 am
No - we are looking at doing a BP-26 combined with a BDA-3 as a preamp in the future

I think that's a great idea.  Those with only digital sources don't need much more from a preamp. Volume only. It seems to me that the categories are converging ... and for good reason.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Mike-48 on 3 Sep 2017, 04:06 am
James,

Regarding the future monster BP-26 preamp, you mentioned a crossover would be an option. Might that include a sub option for those using main speakers (with passive crossovers) and sub(s)?

There is a dearth of really good electronic crossovers around, and it makes sense to incorporate one in a DAC/preamp.

My impression is, the 10B has not been updated to new circuitry.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Sep 2017, 10:16 am
James,

Regarding the future monster BP-26 preamp, you mentioned a crossover would be an option. Might that include a sub option for those using main speakers (with passive crossovers) and sub(s)?

There is a dearth of really good electronic crossovers around, and it makes sense to incorporate one in a DAC/preamp.

My impression is, the 10B has not been updated to new circuitry.

Hi

The 10B  is an analog active crossover and is very flexible so ideal for adding a sub to a system.  The BAX-1 is an active digital crossover and is designed to go with our new Active Bryston speakers. It is specifically designed using dedicated software to operate the Model T the Middle T and the Mini T (all different software).  So when I mentioned the new preamp would have a crossover module I meant for our specific speakers and built in to the new preamp.

Active crossovers like the 10B offer excellent flexibility so they can be used in a variety of systems but they are limited by their universality because they typically only offer slope and crossover roll-off options. The Bryston BAX-1 crossover is designed with a particular speaker in mind (Model T, Middle T, Mini T) and therefore can be optimized (we do over 300 measurements in the anechoic chamber) to provide the best 'Sound Power' (on and off-axis flat frequency response) available for each given speaker.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Mike-48 on 3 Sep 2017, 05:19 pm
The 10B  is an analog active crossover and is very flexible so ideal for adding a sub to a system.  The BAX-1 is an active digital crossover and is designed to go with our new Active Bryston speakers. [...]

OK James, thanks, that explains it.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Raimo on 3 Sep 2017, 09:11 pm
Hi

The 10B  is an analog active crossover and is very flexible so ideal for adding a sub to a system.  The BAX-1 is an active digital crossover and is designed to go with our new Active Bryston speakers. It is specifically designed using dedicated software to operate the Model T the Middle T and the Mini T (all different software).  So when I mentioned the new preamp would have a crossover module I meant for our specific speakers and built in to the new preamp.

Active crossovers like the 10B offer excellent flexibility so they can be used in a variety of systems but they are limited by their universality because they typically only offer slope and crossover roll-off options. The Bryston BAX-1 crossover is designed with a particular speaker in mind (Model T, Middle T, Mini T) and therefore can be optimized (we do over 300 measurements in the anechoic chamber) to provide the best 'Sound Power' (on and off-axis flat frequency response) available for each given speaker.

james
So no plans att all for a preamp with built in crossover for subwoofer?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Sep 2017, 10:10 pm
So no plans att all for a preamp with built in crossover for subwoofer?

Hi

Not at this point - it will be a plug in module dedicated to our active speakers.

james
Title: Crossovers
Post by: Mike-48 on 3 Sep 2017, 10:27 pm
(I changed the subject line because of topic drift.)

I'm glad to see that at least one other poster desires a top-rate xover for subs -- something up to the high standards of Bryston's new equipment.

Right now the choices seem to be complex digital preamps (e.g., Trinnov) or outboard analog crossovers (Bryston, JL Audio, Pass). I'd think a digital crossover would be easier to make transparent, but maybe not; and it would require 4 channels of DAC.  Hard (or at least expensive) to find that at the top ranks of today's market.

From Bryston, we have the 10B-LR. My impression is, that's at the SST level of design. Wouldn't that be a performance reduction when used between units in the Cubed series?

Or do I have all this wrong in some way?
Title: Re: Crossovers
Post by: James Tanner on 3 Sep 2017, 11:43 pm
(I changed the subject line because of topic drift.)

I'm glad to see that at least one other poster desires a top-rate xover for subs -- something up to the high standards of Bryston's new equipment.

Right now the choices seem to be complex digital preamps (e.g., Trinnov) or outboard analog crossovers (Bryston, JL Audio, Pass). I'd think a digital crossover would be easier to make transparent, but maybe not; and it would require 4 channels of DAC.  Hard (or at least expensive) to find that at the top ranks of today's market.

From Bryston, we have the 10B-LR. My impression is, that's at the SST level of design. Wouldn't that be a performance reduction when used between units in the Cubed series?

Or do I have all this wrong in some way?

Hi Mike

No the 10B is based on a Class A discrete circuit - totally different than a power amp.

james
Title: Re: Crossovers
Post by: Mike-48 on 5 Sep 2017, 10:17 pm
No the 10B is based on a Class A discrete circuit - totally different than a power amp.

Hi James, I meant the *input circuit* of a power amp, which operates at line level -- at least its input does, though perhaps it has more gain than the circuit in an active crossover? Not being a circuit designer, I thought the two might be subject to the same kinds of improvements. The Salomie circuit started in the power amps, and it's now is appearing in the new 17B3, which made me wonder if it might appear in the 10B eventually.

Mike
Title: Re: Crossovers
Post by: James Tanner on 5 Sep 2017, 11:59 pm
Hi James, I meant the *input circuit* of a power amp, which operates at line level -- at least its input does, though perhaps it has more gain than the circuit in an active crossover? Not being a circuit designer, I thought the two might be subject to the same kinds of improvements. The Salomie circuit started in the power amps, and it's now is appearing in the new 17B3, which made me wonder if it might appear in the 10B eventually.

Mike

Hi Mike

I would say that will not happen - at least it has not been discussed at this point.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Raimo on 6 Sep 2017, 08:19 am
Is there any chance of a digital version of the 10Bsub?
I looked a little closer on the 10B and noticed that it has volume adjust on the high pass, witch is a little odd i think.
The highpass should be fixed, it is the bass you want to adjust  :| (better for sound quality also with untouched highs).
Some more adjustment features would be welcome too, maby Q adjust and a parametric equalizer to be able to adjust the
bass response to the room.
Maby something to consider in a future digital 10B, to give the owner as much adjustment possibilities you can?

 
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 6 Sep 2017, 10:41 am
Is there any chance of a digital version of the 10Bsub?
I looked a little closer on the 10B and noticed that it has volume adjust on the high pass, witch is a little odd i think.
The highpass should be fixed, it is the bass you want to adjust  :| (better for sound quality also with untouched highs).
Some more adjustment features would be welcome too, maby Q adjust and a parametric equalizer to be able to adjust the
bass response to the room.
Maby something to consider in a future digital 10B, to give the owner as much adjustment possibilities you can?

Hi Ramio

The 10B can be ordered with Low Pass or High Pass adjusted volume.   I think a digital version of the 10B is a good idea but it would take a lot of software development so a complicated project.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Marius on 6 Sep 2017, 01:50 pm
Hi Ramio

The 10B can be ordered with Low Pass or High Pass adjusted volume.   I think a digital version of the 10B is a good idea but it would take a lot of software development so a complicated project.

james


Not aware of this option, i've ordered (the standard version?) and been playing the 10bsub for years now, without a hitch. Had to adjust the sub level indeed because the amp in my Rel and the Bryston setup aren't exactly in volume sync. Using a very affordable Imagineline ILA 100 XLR stereo passive level control for that https://www.monacor.com/products/pa-technology/volume-controls-and-accessories/volume-controls/ila-100xlr/ (https://www.monacor.com/products/pa-technology/volume-controls-and-accessories/volume-controls/ila-100xlr/) from the beginning. Setup once, never look back.


Cheers,
Marius
Title: Re: Bryston BP17 Cubed preamplifier
Post by: SoundGame on 7 Sep 2017, 10:02 pm
Hi Bill

I find there are a few differences between the BP26 and the new BP-17 Cubed preamplifiers.  The BP-17 Cubed circuitry is based on the new patent we received for the input stage of the new Cubed amplifiers.

The soundstage presentation is different – with the BP-26 it’s a more up-front sound with the voices or instrument tending to be at or slightly forward of the plane of the loudspeaker whereas the BP-17 Cubed has a more recessed presentation where most of the action is at the plane of the speaker and further behind.  The size of the stage  (left to right and front to back) as well as the presentation of the instruments (size and position) within the stage was very close so no major difference there I could detect. The BP-26 sounds a little ‘puncher’ in the mid-bass frequency area while the BP-17 Cubed is a little less forceful. If you like that ‘in your gut’ bass punch you may prefer the BP-26 in this area.

The part where I think the 17 excels is when a crescendo comes along – either voice of instrument. In some recordings where the vocalist or instrument goes from a low or medium volume level to a crescendo or maybe even approaching a scream with voice  the 17 never sounds strained or has any sense of glare or stridency. Sometimes I was thinking the BP-17 Cubed lacked dynamic capability but the more I listened the more I thought – no – it’s just that it is not producing any sense of overload or strain in the music when pushed. Transients in real music are huge and the ability of the BP-17 to deal with these huge shifts of level is something it handles very well.

So if I had to sum up the BP-17 in a word it would be “organic” – less hi-fi sounding. It has a very natural sound to it with no strain or glare.

Will spend some more time with the 17 going forward but so far these are my observations.

Hope this helps.

james


Hi James, I read your detailed impressions here with great interest.   The organic and unrestrained quality you attribute to the new BP-17 is analogous to what I perceived between the Cubed and Squared series amplifiers,  which makes sense given the use of the new input stage.  A couple of my other key perceptions of the Cubed vs Squared were a general increase in the sense of warmth and harmonic nuance, .  There wasn't so much an increase in soundstage size but it was easier to pick out the faintest details deep in the soundstage with the Cubed.

Is this general sense of warmth a noticeable quality of the BP17 vs bp26.  As well, what was your impression of the differences in detail retrieval, most specifically at the limits of the soundstage?  Thanks.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 11 Sep 2017, 05:36 pm
Hi James, I read your detailed impressions here with great interest.   The organic and untrained quality you attribute to the new BP-17 is analogous to what I perceived between the Cubed and Squared series amplifiers,  which makes sense given the use of the new input stage.  A couple of my other key perceptions of the Cubed vs Squared were a general increase in the sense of warmth and harmonic nuance, .  There wasn't so much an increase in soundstage size but it was easier to pick out the faintest details deep in the soundstage with the Cubed.

Is this general sense of warmth a noticeable quality of the BP17 vs bp26.  As well, what was your impression of the differences in detail retrieval, most specifically at the limits of the soundstage?  Thanks.

This thread has been hijacked by those who are interested in crossovers and a BP26 that doesn't exist. Thanks Soundgame for returning it to the original topic. I am very interested in hearing a response to your qustions.

Regards,

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 30 Sep 2017, 10:32 am
MEMO: To All Bryston Customers
SUBJECT: New Bryston BP-17 Preamplifier – Dealer Feedback

October, 2017

“Hi James,

I managed to get our very first BP17cubed set up this afternoon and immediately compared it to our BP26 that had been warmed up for the last week or so.

(http://www.audiocircle.com/image.php?id=169175)

First impressions are...well, I get it; there is a composure to the new BP17 Cubed that is really fascinating.

The sound is both fast and "pure".

The BP17cubed's image transparency is alarming! I am now so used to HiFi systems presenting a very solid stereo image, that exists outside of the speaker, I almost don't pay attention to it anymore. But the BP17 has a focus and separation between instruments that is positively tube like!

Cool piece!

Thanks,
JD”


For more info - link to Bryston BP-17 Cubed
http://bryston.com/products/pre_amps/BP17-3.html

Title: Re: Bryston BP17 Cubed preamplifier
Post by: john1970 on 30 Sep 2017, 12:39 pm
Hi James,

Nice review.  I am looking forward to replacing my old BP25 and MPS2 power supply with the BP17 cubed.  I am most looking forward to is being able to run two stereo subs directly from the BP17 cubed.  Currently, I am using a Bryston 10B sub X-cover for this purpose.  It will be nice to be able to replace three pieces of equipment on my rack with a single piece of equipment while utilizing the X-over built into the subs. 

Cheers,

John
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 30 Sep 2017, 01:21 pm
Hi James,

Nice review.  I am looking forward to replacing my old BP25 and MPS2 power supply with the BP17 cubed.  I am most looking forward to is being able to run two stereo subs directly from the BP17 cubed.  Currently, I am using a Bryston 10B sub X-cover for this purpose.  It will be nice to be able to replace three pieces of equipment on my rack with a single piece of equipment while utilizing the X-over built into the subs. 

Cheers,

John

Hi John

Yes I am using the BP17 Cubed that way currently with my Middle T's and Mini T Subs. - works great - I run the Middles full range and then just augment the very low frequencies below 50Hz with the subs.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: john1970 on 3 Oct 2017, 09:40 am
Hi James,

I have two questions regarding the bypass setting on the BP17 cubed preamp:

1) Can either of the balanced inputs be set to bypass mode? 
2) Once bypass is assigned to an input is it fixed (i.e. BP17 remembers the setting even when the unit is powered off)?

I would like to run my surround sound processor through the BP17 so I do not have to continuously change cables on the amplifier end when switching between 2 channel stereo and surround sound. 

Please advise and thank you,

John
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Oct 2017, 10:54 pm
Hi John

Yes, the balanced inputs can be set to bypass mode

Yes, it will remember its settings after a power cycle.

 
Title: Re: Bryston BP17 Cubed preamplifier
Post by: john1970 on 4 Oct 2017, 09:24 pm
Hi John

Yes, the balanced inputs can be set to bypass mode

Yes, it will remember its settings after a power cycle.

Hi James,

Great news  :D

John
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 11 Oct 2017, 10:30 pm
Any reviews out yet on this 17 cubed?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 12 Oct 2017, 12:15 am
Any reviews out yet on this 17 cubed?

+1
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 12 Oct 2017, 12:45 am
Hi

No sorry not yet - it will be a while as we are 74 units backordered and we do not send any to review till we have satisfied our customers first.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: TJ-Sully on 12 Oct 2017, 10:23 pm
That's why WE LOVE BRYSTON. Good man JT!
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 13 Oct 2017, 06:40 pm
Hi

No sorry not yet - it will be a while as we are 74 units backordered and we do not send any to review till we have satisfied our customers first.

james

Hi James,

Do you have any intelligence on what percentage are swapping out the BP26 for the 17 cubed?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 14 Oct 2017, 02:31 am
Hi James,

Do you have any intelligence on what percentage are swapping out the BP26 for the 17 cubed?

Gee sorry no I do not as the dealers would be taking the trades directly.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 26 Oct 2017, 06:29 pm
Hi Folks,

Lots of demand for the new BP-17 Cubed Preamplifier  :thumb:

(http://www.audiocircle.com/image.php?id=170326)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 26 Oct 2017, 09:43 pm
^ Prolific JT.

Do you keep track of specific owners?

How many of those BP17s are heading for owners who own previous Bryston preamps (upgraders)?

Title: Re: Bryston BP17 Cubed preamplifier
Post by: Ola_S on 27 Oct 2017, 08:39 am
Looks very nice! :P I'm currently using a B135SST2 as preamp and it betters the BP-25 + MPS-1 in terms of resolution. In other words; I guess the BP17 Cubed would work very well in my setup  :D
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 27 Oct 2017, 09:45 am
^ Prolific JT.

Do you keep track of specific owners?

How many of those BP17s are heading for owners who own previous Bryston preamps (upgraders)?

Hi

We do not know how many are replacements but it’s a great question

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 27 Oct 2017, 10:52 am
James,

Many mfrs ask their buyers to register their new gear, not only for warranty, but also for stats. I suspect it allows them to scope out their product's "appeal factor" and plan more production units or less, depending on "trends". Some/many buyers might be switching brands altogether, whereas others may be upgrading (or even downscaling!) from previous Bryston models. Good stuff to know, I think.

CM
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 28 Oct 2017, 02:01 am
This week:


(http://www.audiocircle.com/image.php?id=170417)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 28 Oct 2017, 12:24 pm
 :thumb: (same bench/photo as above but from opposite angle? Lol)

Will Bryston go TSX soon?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 30 Oct 2017, 08:46 pm
Just installed my new BHA-1 w/Grado PS2000e's and have it connected SE from BP26 tape out > BHA-1.  I plan to switch to balanced connection directly from the Esoteric K-05 this week and will be anxious to assess any differences.  If the balanced connection SQ is noticeably better I will be seriously considering trading the BP26 for BP17 cubed to get the fixed balanced out option.  Will need more input on 26 and 17 cubed sound comparisons.  No way to audition so will wait for the three reviews James mentioned earlier in the thread.  In any event, the BP17 cubed sounds like a potentially exciting product. No wonder the early demand :thumb:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Nov 2017, 02:13 pm
HI James,

Our 17B3 is now well run in. I even took it home to play with. It is superb!

I can now hear that the BP26 has some colourations in the upper mids and high frequencies compared to the BP173. I can now use high efficiency speakers with our Bryston setup and there no longer the sense of a rising frequency response that speakers like this normally exhibit. I tried a horn loaded tweeter from Triangle and is was beautifully smooth! I have some Opera Loudspeakers with a SEAS soft dome and they too are smoothed out and better balanced than I've ever heard them. And I use Nordost speaker cables! So much for the notion that they are bright cables! They only reveal the quality of the equipment.

Next will be an 8 ohm, 94dB, horn loaded compression driver mated to a cellulose bass driver! This could rip your face off if improperly set up :)

Thank,
Davies
Title: Re: Bryston BP17 Cubed preamplifier
Post by: David Cutler on 3 Nov 2017, 04:41 pm
Hello James,

Could you post some pictures of the Black faceplate option?

Additionally, has the user manual been released on-line yet?

Thanks,
David
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Nov 2017, 05:18 pm
Hello James,

Could you post some pictures of the Black faceplate option?

Additionally, has the user manual been released on-line yet?

Thanks,
David

I am not sure if I have a shot in Black - will check.

Email me - I have a PDF of the manual - jamestanner@bryston.com

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 3 Nov 2017, 09:11 pm
HI James,

Our 17B3 is now well run in. I even took it home to play with. It is superb!

I can now hear that the BP26 has some colourations in the upper mids and high frequencies compared to the BP173. I can now use high efficiency speakers with our Bryston setup and there no longer the sense of a rising frequency response that speakers like this normally exhibit. I tried a horn loaded tweeter from Triangle and is was beautifully smooth! I have some Opera Loudspeakers with a SEAS soft dome and they too are smoothed out and better balanced than I've ever heard them. And I use Nordost speaker cables! So much for the notion that they are bright cables! They only reveal the quality of the equipment.

Next will be an 8 ohm, 94dB, horn loaded compression driver mated to a cellulose bass driver! This could rip your face off if improperly set up :)

Thank,
Davies


Thanks for posting this observation, James.  This kind of feedback is exactly what I'm looking for especially the comparison to BP26.  Did the poster mention anything about the mid to upper bass presentation difference that you observed earlier in the thread?

Thanks,

Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 3 Nov 2017, 10:03 pm
Thanks for posting this observation, James.  This kind of feedback is exactly what I'm looking for especially the comparison to BP26.  Did the poster mention anything about the mid to upper bass presentation difference that you observed earlier in the thread?

Thanks,

Bill

Hi Bill,

No mention of that.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 9 Nov 2017, 10:38 am
Hi James,

I've tested the 17cubed with a variety of amps from high gain to low gain, balanced and single ended. The result is always the same: composure.

I used it with a single ended, point to point solid state amp which has 30dB of gain. Not only was the system silent (used with very efficient speakers) but the 17cubed's volume control offered a great deal of usable range and dynamics.

I usually only give you incessant feedback when I like something ;)

Cheers,
James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: hal jones on 12 Nov 2017, 11:14 pm
Hi.

Any update on the back order status? 
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 12 Nov 2017, 11:53 pm
Hi.

Any update on the back order status?

Hi Hal

We sent quire a few out. Do you have one on order.

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: hal jones on 12 Nov 2017, 11:55 pm
Not yet. I was just wondering how long the wait might be if I was to order. If it would be ready by Christmas?

Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 13 Nov 2017, 12:09 am
Not yet. I was just wondering how long the wait might be if I was to order. If it would be ready by Christmas?

Oh sure that would be fine - you can order it and just designate when you want it shipped.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: SoundGame on 13 Nov 2017, 12:59 am
Hi James.

Would the led colour on the bp17 cube be switchable in the field from green to blue and back?  I understand the cube amps are, no sure about the preamps.  Thanks
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 13 Nov 2017, 01:18 am
Hi James.

Would the led colour on the bp17 cube be switchable in the field from green to blue and back?  I understand the cube amps are, no sure about the preamps.  Thanks
I think they are but you would have to check with Mike - mpickett@bryston.com

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: hal jones on 16 Nov 2017, 06:24 pm
Oh sure that would be fine - you can order it and just designate when you want it shipped.
james

Ordered this morning! Black, 17". 

Already, impatiently awaiting its arrival.  :drool:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 16 Nov 2017, 06:25 pm
Ordered this morning! Black, 17". 

Already, impatiently awaiting its arrival.  :drool:

Hi Hal,

Await your assessment sir.  :thumb:

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: hal jones on 16 Nov 2017, 09:05 pm
My local dealer just called to let me know that he placed the order. Delivery in 2-3 weeks.

 :smoke:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 4 Jan 2018, 04:36 pm
HI

At least a year away and will be 2 rack spaces high with a single rack space external power supply.

james
Hi James any news with the new preamp? And when you say 2 racks high do you mean bp17 or sp3 height? Thanks
Title: Re: Bryston BP17 Cubed preamplifier
Post by: srb on 4 Jan 2018, 04:41 pm
And when you say 2 racks high do you mean bp17 or sp3 height?

A standard rack space unit is 1.75" H

1U  =  1.75" (44.45mm) H
2U  =  3.50" (88.9mm) H
3U  =  5.25" (133.35mm) H
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 4 Jan 2018, 04:52 pm
A standard rack space unit is 1.75" H

1U  =  1.75" H
2U  =  3.50" H
3U  =  5.25" H
I didn’t know that, I am from Greece and thank you for your answer.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 05:14 pm
Hi James any news with the new preamp? And when you say 2 racks high do you mean bp17 or sp3 height? Thanks

Hi Jimmy

Yes we have been shipping the preamp for a few weeks now.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: srb on 4 Jan 2018, 05:29 pm
A standard rack space unit is 1.75" H

1U  =  1.75" (44.45mm) H
2U  =  3.50" (88.9mm) H
3U  =  5.25" (133.35mm) H

(Plus the height of attached feet if a unit is not rack mounted)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 4 Jan 2018, 05:45 pm
Hi Jimmy

Yes we have been shipping the preamp for a few weeks now.

james
Hi James do you mean the BP17 cubed? Sorry I meant a new preamp that you have mentioned a while ago.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 05:51 pm
Hi James do you mean the BP17 cubed?

Yes sorry I should have said BP17 Cubed

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 05:52 pm
Yes sorry I should have said BP17 Cubed

james

PS - by the way was told today the review should be out in Stereophile soon.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 4 Jan 2018, 05:57 pm
PS - by the way was told today the review should be out in Stereophile soon.

james
Sorry I meant the new preamp that you have mentioned a while ago.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 06:07 pm
Sorry I meant the new preamp that you have mentioned a while ago.

OH - that's a long way off.  We are just so busy with other projects currently.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: 95Dyna on 4 Jan 2018, 06:21 pm
PS - by the way was told today the review should be out in Stereophile soon.

james

Hi James, will you be posting the stereophile review when it's available?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 06:24 pm
Hi James, will you be posting the stereophile review when it's available?

Yes but as usual it may be a few months as I have only just seen the preliminary comments.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jimmy71 on 4 Jan 2018, 06:37 pm
OH - that's a long way off.  We are just so busy with other projects currently.

james
So we won’t expect it this year?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 4 Jan 2018, 06:38 pm
Yes but as usual it may be a few months as I have only just seen the preliminary comments.

james

Do you get to make suggestions or edit the review before it goes to press?
 :scratch:
 :green:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 06:41 pm
So we won’t expect it this year?

Hi

I would say probably not this year.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jan 2018, 06:42 pm
Do you get to make suggestions or edit the review before it goes to press?
 :scratch:
 :green:

No ... all you can do is correct factual issues that relate to the description of the product and its engineering designs and feature sets.

james
Title: Subjective thoughts on replacing a Bryston BP26 with a Bryston BP17 Cubed
Post by: David Cutler on 5 Jan 2018, 12:59 am
To avoid repetition, all these observations and thoughts are subjective.  I have had a Bryston BP26 for a number of years and have recently traded it in for a new Bryston BP17 Cubed.  Unfortunately, I did not have both at the same time so these observations and thoughts are based on my recollection of the BP26 against the “live” experience of the Bryston BP17 Cubed.

In summary, not a subtle difference.  It’s “a grower”, the more I listen, the more I prefer it.  The BP26 is a great pre-amp to start with and the BP17 Cubed improves upon it.


David
Title: Re: Subjective thoughts on replacing a Bryston BP26 with a Bryston BP17 Cubed
Post by: SoundGame on 27 Jan 2018, 11:52 pm
David, after doing much back and forth comparison between the BP26 and the BP173 I have to say that your interpretations are almost identical to my own.  To add, I noticed that though the BP17 is clearer with a purer treble it is also smoother in the treble most noticeable on female voice sibilants.  Also, there is clearer interpretation of the furthest details at the extremes of the soundstage.  Bass detail and articulation is also greater with the BP17, and apparently it has more control and reach at the lowest frequencies, yet the BP26 is thicker and seemingly fuller in the bass.  The bass on the BP26 sounds somewhat sluggish and vague against the BP17 Cubed.  All in all I’m very impressed with this Cube version of the BP17.


To avoid repetition, all these observations and thoughts are subjective.  I have had a Bryston BP26 for a number of years and have recently traded it in for a new Bryston BP17 Cubed.  Unfortunately, I did not have both at the same time so these observations and thoughts are based on my recollection of the BP26 against the “live” experience of the Bryston BP17 Cubed.
  • Less slam, but is this a colouration with the BP26 (a mid-bass hump in the 100Hz-125Hz range?).  To be honest, one of the criticisms I had of the BP26 was that there was too much slam; It was initially impressive with the BP26, but during extended listening sessions this became irksome – one of the reasons for the change.
  • The BP17 Cubed presents a more detailed representation.  With some tracks, I can discriminate multiple instruments with the BP17 cubed, rather than the previous “thicker” sound from the BP26.
  • The BP17 Cubed’s soundstage is not as far forward as that of the BP26 and extends outside the speakers, not just between them.  The soundstage might extend further back.
  • Compared to the BP26, the BP17 Cubed sounds less gritty, overall smoother – another reason for the change, the grittiness was becoming tiring with long listening sessions.  Interestingly, the BP17 Cubed presents brass instruments more raspier.
  • More focus around the instruments and performers, “darker” elsewhere.  This gives the impression of a quieter presentation, but, if anything, the dynamic range might be bigger.
  • Subtle, less “Hi-Fi”.

In summary, not a subtle difference.  It’s “a grower”, the more I listen, the more I prefer it.  The BP26 is a great pre-amp to start with and the BP17 Cubed improves upon it.


David
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 28 Jan 2018, 02:52 am
HI Folks,

Got a copy of a review to be released shortly where the reviewer compares the BP26 with the BP17 Cubed in detail.

james

Title: Re: Bryston BP17 Cubed preamplifier
Post by: Elizabeth on 28 Jan 2018, 05:10 am
Then the question is.. When is the BP-26 going to get the 'cubed' treatment?
----------------------------------------  :D  ----------------------------------------
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 28 Jan 2018, 11:50 am
Then the question is.. When is the BP-26 going to get the 'cubed' treatment?
----------------------------------------  :D  ----------------------------------------

Hi Liz

The BP26 would need a complete rework so it would be a different preamp at that point and the BP26 would be discontinued.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: ngamountains on 2 Apr 2018, 12:32 am
Big thanks for David Cutler and SoundGame above for posting their thoughts on this comparison with the BP26. I have a BP26, as well, and just purchased a BP17 Cubed myself today. I expect it will take a week or so to arrive, and I will post my thoughts here once I’ve had a fair chance to compare the two units.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: NHSkier on 2 Apr 2018, 10:03 am
Does anyone have observations about the sound of the BP-17 (non-cubed) versus the BP-17 cubed?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: BrianoftheSouth. on 26 Apr 2018, 07:39 pm
Hi James,
I just ordered a BP 17 Cubed with the optional internal DAC. This unit will be replacing a Simaudio P 5.3 with a Nuprime DAC 10. I am trying to eliminate the digital glare. Any input on the wisdom of my choice? I was always happy with the P 5.3 and the NuPrime was really better than my Oppo. My amps are all Bryston. If there are any other amps around here they are hiding or slated for replacement with Bryston.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 26 Apr 2018, 09:13 pm
Hi James,
I just ordered a BP 17 Cubed with the optional internal DAC. This unit will be replacing a Simaudio P 5.3 with a Nuprime DAC 10. I am trying to eliminate the digital glare. Any input on the wisdom of my choice? I was always happy with the P 5.3 and the NuPrime was really better than my Oppo. My amps are all Bryston. If there are any other amps around here they are hiding or slated for replacement with Bryston.

Hi BrianoftheSouth

Well I will anxiously wait for your assessment sir  :thumb:

JamesoftheNorth
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 1 May 2018, 10:40 am
Hi Folks,

Got this today from our South Africa Distributor.

james



Hi James

Please find the link to local review of the Bryston BP 17 Cuber preamplifier - http://www.avsa.co.za/bryston-b17b3-honesty-is-the-best-sonic-policy/
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 2 May 2018, 09:37 pm
Hi Folks,

Got this today from our South Africa Distributor.

james


JamesOfTheJungle now, eh?   :lol:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 May 2018, 06:02 pm
Hi Folks,

The June Issue of Stereophile has a review of the Bryston BP-17 Cubed.

(https://www.audiocircle.com/image.php?id=179752)


Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 15 May 2018, 10:53 am

(https://www.audiocircle.com/image.php?id=180089)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: taww on 19 May 2018, 06:58 pm
My review unit (along with a 4B3) is arriving Monday! Super excited to give them a listen. :)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: TJ-Sully on 20 May 2018, 02:36 am
hey folks....here's Gary Dayton talking about the BP17 cubed.
https://www.youtube.com/watch?v=SRDo1BDDZ2A

TJ
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 20 May 2018, 09:52 am
My review unit (along with a 4B3) is arriving Monday! Super excited to give them a listen. :)

Hi

Looking forward to your thoughts.  Please say hello to Martin for me.

James
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 22 May 2018, 06:56 pm
(https://www.audiocircle.com/image.php?id=180089)

Hi Folks,

I have the PDF of the full review - email me if you want a copy.
jamestanner@bryston.com

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: zoom25 on 22 May 2018, 07:38 pm
How does the preamp section of the BHA-1 compare to the BP-17 cubed sound wise? Thanks.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 22 May 2018, 07:50 pm
James,

Excellent review. This product should win product of the year. The price performance ratio is outstanding.

Congratulations to your team this is product competes with the finest and most expensive pre Amos in the world at a fraction of the price.

Outstanding!!!

Best regards,
Steohen
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 22 May 2018, 09:31 pm
How does the preamp section of the BHA-1 compare to the BP-17 cubed sound wise? Thanks.

I used a BP17 v1 for a year. Tested my BHA preamp against it.
No contest. The 17 was much better, despite being SE inputs only.
Bal out on both to 14B2.

I would expect the 17-3 to sound even better.....

Cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: zoom25 on 23 May 2018, 05:15 am
I used a BP17 v1 for a year. Tested my BHA preamp against it.
No contest. The 17 was much better, despite being SE inputs only.
Bal out on both to 14B2.

I would expect the 17-3 to sound even better.....

Cheers

Thanks.  :thumb:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 24 May 2018, 04:07 pm
Hi James,

NEW REVIEW on BP-17 and 4B Cubed !

“One of the actually best amplifiers on the market”

On German Online Magazine Fairaufio.de:

https://www.fairaudio.de/test/bryston-bp17%c2%b3-und-bryston-4b%c2%b3-vor-endverstaerker-kombination/

Best regards
Edvard Potisk
AViTech, Dkfm.
Email: edvard.potisk@avitech.at
Web: www.avitech.at

Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 24 May 2018, 09:31 pm
Full Stereophile review:

http://bryston.com/PDF/reviews/2018_05_Stereophile_BP_17.pdf
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 25 May 2018, 11:33 am
Hi James

I read the German review and gotta tell you , it’s really great for both components.

Ernie
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 31 May 2018, 09:57 pm
http://www.enjoythemusic.com/magazine/equipment/0618/Bryston_BP17_3_Preamplifier_7B_3_Monoblock_Amplifier_Review.htm
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Jun 2018, 07:51 pm
Hi Folks,

I have a PDF of a very, very, very in depth review of the Bryston BP17 Cubed Preamplifier and 4B Cubed Power Amplifier combo from FAIRAUDIO Magazine in Germany.  Some great pics as well!

My sincere thanks to Peter Ullman a dedicated audiophile and true gentleman for his translation of the German to English.

Please email me if you want a copy - it's 11 pages and 1M - jamestanner@bryston.com

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: milpai on 5 Jun 2018, 03:29 pm
One more review, in the following magazine. Turn a couple of pages and you will find the review in English:

https://stereo-magazine.com/flipview/epaper/stereo-magazine-15-2018-15/
Title: Re: Bryston BP17 Cubed preamplifier
Post by: milpai on 5 Jun 2018, 03:36 pm
And one more:

http://innerearmag.com/reviews/speakers/Audio_Observer_Bryston_Active_System.shtml

This is a review of Bryston's active system that includes the BP-17 cubed.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 15 Jul 2018, 07:18 pm
MEMO: To All Bryston Customers
SUBJECT: Bryston BP17 Cubed and 4B Cubed Combo – Customer Feedback


July 2018

Wow!

Now that they are in working order, and any kinks (traced to other components) have been troubleshot, my system is transformed.

Bryston is spoiling me as we speak. Hard to tell if it is the 4B Cubed stereo amplifier or the BP17 Cubed pre-amplifier, which I added at the same time.

Such a fantastic pair!

The sound is much more full and detailed. Soundstage is markedly improved, so much that I must say it’s almost like I never heard soundstage in my system before. Bass is extended and midrange is particularly improved. I can now ‘feel’ the music, unlike before.

Vocals are more in the room. Whatever you have done with this pair, you have done right. The wife, who could almost care less about music, commented right away “It sounds amazing”. I can only concur. Looking forward to years of enjoyment....

My thanks to the entire Bryston team!

Shrinky

Title: Re: Bryston BP17 Cubed preamplifier
Post by: milpai on 23 Jul 2018, 02:34 am
Hello James,

I was reading the specs on the BP-17 cubed. It specifies the input impedance as 6.5K balances and 4.5k Balanced. Are those the correct numbers? I was warned by a friend that this could stand a very good chance of severely constraining the choice of source components.

Can you please clarify?

Thanks!
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 24 Jul 2018, 09:46 am
Hello James,

I was reading the specs on the BP-17 cubed. It specifies the input impedance as 6.5K balances and 4.5k Balanced. Are those the correct numbers? I was warned by a friend that this could stand a very good chance of severely constraining the choice of source components.

Can you please clarify?

Thanks!

Hi James,

Yes, these numbers are correct:

UNBAL IN:                                                                                                            6k5 OHMS

BAL IN (INV INPUT):                                                                                            4K5 OHMS

BAL IN (NON-INV INPUT):                                                                                  4K5 OHMS

The "Alexandru" input stage is comprised of a component set that  optimizes the S/N ratio. As a result, the input impedances are perhaps not quite as high as a few other pre-amps.

However, most input sources should be a able to drive these with impedances with little effort.

Thanks
David Nelson
CAD Engineer
Title: Re: Bryston BP17 Cubed preamplifier
Post by: alexone on 16 Aug 2018, 06:16 am
James,

is Bryston working on a preamp that is a combination of a BP17 Cubed and a BDA-3?

al.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 16 Aug 2018, 10:44 am
James,

is Bryston working on a preamp that is a combination of a BP17 Cubed and a BDA-3?

al.

Hi Al

Yes we are.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 16 Aug 2018, 11:20 am
Hi JT

What is the ETA in stores of the new DAC/17?

cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 16 Aug 2018, 01:39 pm
I think we are going to call it the BP-18 Preamp but we are just in the design stages so a ways off.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 16 Aug 2018, 02:08 pm
MEMO: To All Bryston Customers
SUBJECT: Bryston BP-17 Cubed Preamplifier Demo Video

August 2018


Hi Folks,

Another great demo video from our dealer Moon Audio regarding the Bryston BP-17 Cubed Preamplifier.

Please see link below.


https://www.youtube.com/watch?v=SRDo1BDDZ2A
Title: Re: Bryston BP17 Cubed preamplifier
Post by: TJ-Sully on 16 Aug 2018, 10:01 pm
Great video James. But the boys need to work on sound quality of the vids. After all, we nutbars appreciate SQ :)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: alexone on 17 Aug 2018, 03:54 am
I think we are going to call it the BP-18 Preamp but we are just in the design stages so a ways off.

james


...could you say roughly anything about the price?

and is it true that the BP17 Cubed will have a new digital board? if yes, will it have a usb input??

thanks,

al.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 17 Aug 2018, 02:18 pm

...could you say roughly anything about the price?

and is it true that the BP17 Cubed will have a new digital board? if yes, will it have a usb input??

thanks,

al.

Hi Al

Yes the new DAC board is available but not USB just COAX and Optical.

Pricing is difficult as it varies from country to country..

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 17 Aug 2018, 03:59 pm

Pricing is difficult as it varies from country to country..
james

Approx how much $$ in Canada?

thanks

---------------

The DAC inside:
- no DSD capability?
- up to 192/24?

Thanks.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 21 Sep 2018, 05:41 pm

(https://www.audiocircle.com/image.php?id=184683)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: vklyushnikov on 4 Oct 2018, 05:10 pm
Hi James

I just installed BP17 Cubed with 4B Cubed in my system and have some questions:
Regards,
Vladimir
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Oct 2018, 05:27 pm
HI Vladimir

1. The BP-17 always has some power as it needs it to allow for remote turn-on.  The noise should not be excessive and a lot will depend on the line frequency in your area.

2. I would use the 29dB setting as the volume control is different than the BP25.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: vklyushnikov on 4 Oct 2018, 08:52 pm
James, thank you very much for reply. Looks like new volume works great for me - as my listening room is relatively small. Am I correctly understand that 23 db is also fine - as long as I don't need too much loudness? And which type is BP173 XLR output - actively balanced or transformer coupled balanced?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 4 Oct 2018, 09:32 pm
James, thank you very much for reply. Looks like new volume works great for me - as my listening room is relatively small. Am I correctly understand that 23 db is also fine - as long as I don't need too much loudness? And which type is BP173 XLR output - actively balanced or transformer coupled balanced?

Hi

Yes 23 is fine as well.

Actively Balanced using discrete components.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: alexone on 10 Oct 2018, 12:41 pm
James,

the preamp section of the B 135³ is basically the same as the BP 17³ ,(i guess)....

now the B 135³ has a 'clip' function whereas the the BP 17³ has a 'bypass' function.

why?

al.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 15 Oct 2018, 06:02 pm
Hi James,

Although a preamp can clip at the outputs, a "CLIPPING" indicator is usually associated with power amps.
When the BP17 preamp which uses the same dress panel as the B135) was designed, an LED indicating clipping became redundant.
The LED needed to be used for something, so it was decided to indicate the "BYPASS" function.
On the B135 Amplifier, bypass is indicated by both "BALANCE" LEDs turning red when the bypassed input is selected.

I hope this helps.

David
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 14 Dec 2018, 07:24 am
Full Stereophile review:

http://bryston.com/PDF/reviews/2018_05_Stereophile_BP_17.pdf

JA found some 60 Hz power related noise in the LEFT channel, although below human audible levels:

https://www.stereophile.com/content/bryston-bp-173-line-preamplifier-measurements

In fact a lot has been written of the Cubed series’ low-noise circuits, however I am getting some unexpected noises out of the preamp.  Given the great specs, baseline noise level (with volume turned all the way down) is a bit higher than I would expect for a solid-state preamp.  Fortunately this white noise, which can be heard standing close to the speakers, does not increase as volume is turned up.

There is also a transient "pop" every time the output is muted or un-muted. This pop is about 5 times louder in the LEFT channel on my unit. If you watch the speakers you can see the woofers move a bit when muting and un-muting.  This prompted me to put a voltmeter on the pre-outs, with no source signal and volume at zero. I don’t know if this relates to JA’s measurements, but there does seem to be something odd happening in the LEFT channel on my unit.  Without muting I measured 12 mV DC on the right RCA output; 32 mV DC on the left.  When muting it spikes off the scale, so at least an order of magnitude higher.

This is my first Bryston preamp.  Are others' like this?

Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 14 Dec 2018, 03:08 pm

To Bryston: I used to have the old version of BP17 (non-cubed), and I heard no clicks/pops when muting off balanced. As the cubed amp innovation deals exclusively with the input stage, I'm puzzled as to why an output would have this issue. It should be dead silent, no?

cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: PierreB on 14 Dec 2018, 03:28 pm
Hi Stefan,
I used to have a BP-25 and it makes the same noise as yours when I press the mute button. And it’s louder in the left channel than in the right. It’s only when I use XLR cables. With the RCA connection between the BP-25 and 2B SST, no more noise. I try different XLR cables with no succes.
I return my 2 Bryston for a complet check but they find nothing wrong. So I only use RCA connection.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 14 Dec 2018, 03:35 pm
Hi Stefan,
I used to have a BP-25 and it makes the same noise as yours when I press the mute button. And it’s louder in the left channel than in the right. It’s only when I use XLR cables. With the RCA connection between the BP-25 and 2B SST, no more noise. I try different XLR cables with no succes.
I return my 2 Bryston for a complet check but they find nothing wrong. So I only use RCA connection.

You don't hear any noise when music is playing, right?
I think that's what's crucial here.
But yes, it's unsettling that noise is there in bal mode when muted.

cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: PierreB on 14 Dec 2018, 04:20 pm
You don't hear any noise when music is playing, right?
I think that's what's crucial here.
But yes, it's unsettling that noise is there in bal mode when muted.

cheers

No, I don’t hear any noise. Only when I press the mute button, I heard a single loud pop. No more.
They always be extremely silent.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 14 Dec 2018, 06:58 pm
Since I find my BR2 difficult to use with my macular degeneration, I use it as a doorstop.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 14 Dec 2018, 07:15 pm
Since I find my BR2 difficult to use with my macular degeneration, I use it as a doorstop.

I use it to silence my neighbor's cat when I want absolute silence for my listening pleasure.
 :lol: :lol: 8) :green:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 14 Dec 2018, 07:47 pm
Hi Stefan,
I used to have a BP-25 and it makes the same noise as yours when I press the mute button. And it’s louder in the left channel than in the right. It’s only when I use XLR cables. With the RCA connection between the BP-25 and 2B SST, no more noise. I try different XLR cables with no succes.
I return my 2 Bryston for a complet check but they find nothing wrong. So I only use RCA connection.

Thanks Pierre, this is good information.  I didn't realize the issue was particular to their balanced outputs.  I will probably continue to use XLR despite the muting pop.
Bryston just re-tested my preamp so I have to assume it is characteristic (a minor annoyance).

Being premium products and a long-standing issue, I'm disappointed none of the professional reviewers have mentioned it though. :scratch:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: john1970 on 14 Dec 2018, 10:37 pm
JA found some 60 Hz power related noise in the LEFT channel, although below human audible levels:

https://www.stereophile.com/content/bryston-bp-173-line-preamplifier-measurements

In fact a lot has been written of the Cubed series’ low-noise circuits, however I am getting some unexpected noises out of the preamp.  Given the great specs, baseline noise level (with volume turned all the way down) is a bit higher than I would expect for a solid-state preamp.  Fortunately this white noise, which can be heard standing close to the speakers, does not increase as volume is turned up.

There is also a transient "pop" every time the output is muted or un-muted. This pop is about 5 times louder in the LEFT channel on my unit. If you watch the speakers you can see the woofers move a bit when muting and un-muting.  This prompted me to put a voltmeter on the pre-outs, with no source signal and volume at zero. I don’t know if this relates to JA’s measurements, but there does seem to be something odd happening in the LEFT channel on my unit.  Without muting I measured 12 mV DC on the right RCA output; 32 mV DC on the left.  When muting it spikes off the scale, so at least an order of magnitude higher.

This is my first Bryston preamp.  Are others' like this?

I had the exact same issue(s) with a new BP17 cubed I purchased about a year ago.  At that time I had a BP26 converted from a BP25 and MPS2 which was significantly less noisy.  Since then I moved onto a SimAudio 740P preamp and have the very precise volume control which I desired along with absolute silence.   

Good luck,

John
Title: Re: Bryston BP17 Cubed preamplifier
Post by: TJ-Sully on 15 Dec 2018, 12:35 am
Hi Stefan, I've used a Bryston BP20 for about 5 or 6 years - and it was dead quiet. Not a hop hiss or buzz.
The only issue i had was with my own room - in the winters, it's super dry in my house, and prone to static shocks. Sometimes I'd get a shock on almost anything i touch - even the preamp. This would sometimes cause the unit to lose power.
But as for noise - absolutely zero.
hope you can figure it out.
cheers, TJ.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 15 Dec 2018, 08:20 pm
Plaintive Cry in the Wilderness for a simple "Volume Up - Volume Down" remote for my BP17c.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Kusot on 26 Dec 2018, 11:10 am
I believe the last few posts are regarding grounding. DC voltage on output and pops sounds like ground loops. Difference between RCA and xlr sounds like ground loops. Difference in dry and humid conditions sounds like groundloop. Are all components connected to a same circuit? I have bp16p, bp173p, BDA3 and bdp3. I have heard pops and noice, but it has always been related to grounding. Right now I connect all components to socket with common ground, BUT the common ground is not grounded. I use xlr between bdp3 and bp173 and RCA to amps.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 1 Jan 2019, 09:06 pm
I had the exact same issue(s) with a new BP17 cubed I purchased about a year ago.  At that time I had a BP26 converted from a BP25 and MPS2 which was significantly less noisy.  Since then I moved onto a SimAudio 740P preamp and have the very precise volume control which I desired along with absolute silence.   

Good luck,

John

Thanks John.  I did wonder if I should have gone with the BP26 instead  :|
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 1 Jan 2019, 09:17 pm
I believe the last few posts are regarding grounding. DC voltage on output and pops sounds like ground loops. Difference between RCA and xlr sounds like ground loops. Difference in dry and humid conditions sounds like groundloop. Are all components connected to a same circuit? I have bp16p, bp173p, BDA3 and bdp3. I have heard pops and noice, but it has always been related to grounding. Right now I connect all components to socket with common ground, BUT the common ground is not grounded. I use xlr between bdp3 and bp173 and RCA to amps.

Thanks for the suggestion.  I did have my 7B2 amps on a separate circuit, with everything else on a BIT-15.  I was hoping you were onto something so I just moved the amps to the same circuit as the BIT-15 (everything is on the BIT-15 now).  No change in the noise or pops either way.  :(
Title: Re: Bryston BP17 Cubed preamplifier
Post by: lsolimine on 3 Jan 2019, 03:56 pm
Good day.  My first post.  I am thinking of adding the BP17 to enhance my two-channel sound.  I will need to use the Home Theater Bypass.  From the literature, it appears I will always need to use the BR2 to toggle the bypass on and off.  Is that the case? Thank you.

Lou
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 7 Jan 2019, 11:06 pm
Good day.  My first post.  I am thinking of adding the BP17 to enhance my two-channel sound.  I will need to use the Home Theater Bypass.  From the literature, it appears I will always need to use the BR2 to toggle the bypass on and off.  Is that the case? Thank you.

Only when you want to change the Bypass setting or move your processor to another input.  Once set, for a given input, the unit remembers the Bypass (and Trigger) settings for that input.

I use a cheap Logitech Harmony remote which has soft keys programmed to toggle the Bypass (and Trigger) on/off.  I have a BR2 but I don't use it for those special functions.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: lsolimine on 9 Jan 2019, 05:44 pm
Dear Stefan,

Thank you very much for the information.  Take care.

Lou
Title: Re: Bryston BP17 Cubed preamplifier
Post by: alexone on 10 Jan 2019, 10:20 pm
James,

any chance that the dac of the 17cubed will have usb (with dsd) ?? i think it‘s really great to have 192/24 via spdif but usb/dsd would be cool as well.

al.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: unincognito on 10 Jan 2019, 10:49 pm
James,

any chance that the dac of the 17cubed will have usb (with dsd) ?? i think it‘s really great to have 192/24 via spdif but usb/dsd would be cool as well.

al.

Sorry, no usb/dsd
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 16 May 2019, 02:29 pm
Hi Folks,

The latest issue of Stereophile (July 2019 - Pages 105-107) has an excellent follow up review on the Bryston BP-17 Cubed Preamplifier.

Should have a PDF of it shortly.

james



Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 17 May 2019, 08:21 pm
Hi James,

What amplifier and speakers did they use this time?

George
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 17 May 2019, 09:19 pm
Not sure as the review is more about the internal Phono Stage and DAC

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 26 May 2019, 09:56 am
Hi Folks

Here is a link to the June 2019 update on the Stereophile site.

https://www.stereophile.com/content/bryston-bp-173-line-preamplifier-phono-dac-modules-june-2019

The July issue will have a follow up as well from John Atkinson showing the superb measurements of the Phono and DAC stage.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 26 May 2019, 01:09 pm
James,

Thank you!

George
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 27 May 2019, 11:03 am
Hi Folks

Here is a link to the June 2019 update on the Stereophile site.

https://www.stereophile.com/content/bryston-bp-173-line-preamplifier-phono-dac-modules-june-2019

The July issue will have a follow up as well from John Atkinson showing the superb measurements of the Phono and DAC stage.

james


Nice review and congrats. The reviewer sure has good musical tastes -- his selections are quite eclectic.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: CanadianMaestro on 2 Jun 2019, 10:39 pm
My wish for the next iteration of BP17 preamp: a third pair of XLR balanced input jacks. Two presently. Max flexibility with a third pair: 1. Phono pre 2. CD player 3. DAC .
cheers
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 6 Jun 2019, 05:19 pm
HI Folks,

Please see the attached review from the July 2019 Stereophile magazine regarding the BP-17 Preamplifers ‘INTERNAL’ MM Phono Stage and DAC.

Please note the superb RIAA accuracy and and the excellent signal to noise ratio in the phono stage as well as the outstanding measurements of the digital section.

Favourate Quote:
“This is a very quiet Phono Stage”.
John Atkinson - Stereophile

james

Email me if you want a copy

jamestanner@bryston.com
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 2 Jul 2019, 09:57 am
I just installed the optional phono stage in my BP-17(3) and I have to say it is fantastic. It is the exact same MM board that goes into the Bryston BP-2. (One small difference is that you cant change the mm capacitance loading the way you can in the BP-2)

Got it on a whim to try it out because the Stereophile review was so good. From a sonics standpoint -- compared to cost no object phono stages, I'd rate the board as very very good to excellent. IMHO It is so good that I plan to add a step up transformer for my moving coil, sell my outboard phono stage, and call it a day.


urbanluthier
Title: Re: Bryston BP17 Cubed preamplifier
Post by: redbook on 2 Jul 2019, 01:18 pm
My wish for the next iteration of BP17 preamp: a third pair of XLR balanced input jacks. Two presently. Max flexibility with a third pair: 1. Phono pre 2. CD player 3. DAC .
cheers.....and a phase reverse feature please.... :thumb:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 21 Jul 2019, 01:04 pm
Hi James,

Any news about the "BP-18" ?

George
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 22 Jul 2019, 10:43 am
Hi James,

Any news about the "BP-18" ?

George

Hi George

Working on putting the first prototype together so I can audition it.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 23 Jul 2019, 05:07 pm
Hi James,

Thank You

Gorge
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 4 Aug 2019, 10:13 pm
I just installed the optional phono stage in my BP-17(3) and I have to say it is fantastic.
 -- compared to cost no object phono stages, I'd rate the board as very very good to excellent. IMHO It is so good that I plan to add a step up transformer for my moving coil, sell my outboard phono stage, and call it a day.
urbanluthier


That's exactly what I did  :green:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 4 Aug 2019, 10:15 pm
Hi George

Working on putting the first prototype together so I can audition it.

james

Interesting news (BP18) James!

Can the muting circuit be revisited for the new model so balanced XLR users don't get that pop on mute/unmute?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 Aug 2019, 12:30 am
Interesting news (BP18) James!

Can the muting circuit be revisited for the new model so balanced XLR users don't get that pop on mute/unmute?

Hi

I have the BP17 in one of my setups and no pop?

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 5 Aug 2019, 10:54 pm
Hi

I have the BP17 in one of my setups and no pop?

james

I wrote about it here:
https://www.audiocircle.com/index.php?topic=151889.msg1719028#msg1719028

Maybe there's some variance between units but others chimed in and the unit at my dealer (Audioshop Kanata) does it too.

Stefan
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 Aug 2019, 11:49 pm
HI Stefan

OK I will look into it - what amplifier are you using?

james


Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 5 Aug 2019, 11:58 pm
Hi James,

What DAC capabilities are planned for the "BP!8" ?

George
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 6 Aug 2019, 03:57 am
HI Stefan

OK I will look into it - what amplifier are you using?

james

Bryston 7B2  :)
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 6 Aug 2019, 10:32 am
Hi James,

What DAC capabilities are planned for the "BP!8" ?

George

Hi George

Same as the BDA-3 DAC.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gberger on 6 Aug 2019, 06:32 pm
Hi James,

Thank You! 

I'll really be interested in how the "BP18"will fit into a streaming setup.

George
Title: Re: Bryston BP17 Cubed preamplifier
Post by: rmurray on 7 Aug 2019, 02:16 pm
 I assume there will be a polarity reverse feature on this new model ? :thumb:
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gene9p on 8 Aug 2019, 12:23 am
is this a legit sale??????...1750?

https://www.audiogon.com/listings/lis9g7bi-bryston-bp-17-cubed-solid-state
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Ron D on 8 Aug 2019, 12:33 am
I would venture it is as I recognize the number. I'm not a regular poster here so take my input as you will...

As it's on Audiogon it would be in $US, never seen that unit sell that low in my native Canada for our Canuck bucks
Title: Re: Bryston BP17 Cubed preamplifier
Post by: gene9p on 8 Aug 2019, 01:25 pm
exactly.....it's an extremely low price..well it's gone or sold now... :o
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 28 Oct 2020, 10:34 am
https://bryston.com/hifi-critic-bp17-and-3b-stereo-amp-review/
Title: Re: Bryston BP17 Cubed preamplifier
Post by: dminches on 18 Nov 2020, 12:56 pm
With this preamp can one use the variable balanced output to connect to an amp and also use the variable single-ended output for a subwoofer?  That is, are they both active?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 18 Nov 2020, 01:55 pm
With this preamp can one use the variable balanced output to connect to an amp and also use the variable single-ended output for a subwoofer?  That is, are they both active?

Hi

Yes both are active.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: dminches on 18 Nov 2020, 05:03 pm
Hi

Yes both are active.

james

Do the unbalanced outputs produce the same level of output at the balanced ones or are they 6 dB or so lower?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 18 Nov 2020, 05:26 pm
Do the unbalanced outputs produce the same level of output at the balanced ones or are they 6 dB or so lower?

Same but adjust the levels at the subwoofer.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Jozsef on 18 Nov 2020, 11:12 pm
This is good to know and rather timely for me. Even though a high pass filter on smallish main speakers is beneficial when using a subwoofer, I was troubled by the idea of putting everything through a rather old Velodyne ULD-18 controller. Using my Bryston speakers full range with the sub crossover set to the correct frequency solves the problem.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: mr_bill on 13 Dec 2020, 04:25 am
James,
Is the optional dac module for the BP17 cubed preamp most similar to the BDA3 dac?
I was reading the Stereophile follow up review on the modules and that’s what I took from the article.
Thanks,
Bill
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 14 Dec 2020, 10:23 pm
Hi Bill,

Yes it is the AKM DAC

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Ron D on 18 Dec 2020, 05:57 pm
James, I had made an inquiry via Bryston's website a couple of days ago and have yet to receive a reply so I will post it hear...

1. Current Canadian list price of the DAC module?

2. Can this module be installed by the preamp's owner (plug & play) or does it have to be sent to the factory for installation?

TIA
Ron
Title: Re: Bryston BP17 Cubed preamplifier
Post by: bokko on 6 Jan 2021, 02:03 am
Like to inquire about bypass function on BP-17.3 before purchase.

Intend to hook my 3B squared to XLR output on preamp. Then I select one input on 17 cubed that I would connect my Marantz SR7012 Main L/R Pre-out.
Bypass is off I listen to Bryston goodness.

FYI
Main input used will be BDA 3 via XLR input fed from PC for now.

On built in phono thats based on BP-2 the gain would then be 41db? Can the Cartridge Loading be changed?
My iPhono 2 with Goldring 2500 on P6 sounds best at 250.

Thanks for your time
Stay safe
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Nitsuave on 21 Feb 2021, 10:11 pm
I currently own a BDA 3.14 in a hybrid 2 channel/HT system and have been experimenting with a direct connection of the 3.14 to a NAD M25 bypassing my Anthem AVM 60 pre/pro.  The configuration has brought a noticeable improvement to the sound compared to using the AVM 60 as an analog pre amp.

I am considering the purchase of a BP 17 cubed for proper two channel listening without having to disconnect/reconnect cables.  The HT bypass feature should allow for easy integration into my existing system.

How does the digital pre amp feature of the 3.14 stack up against the pre amp capabilities of the BP 17?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 22 Feb 2021, 10:57 am
I currently own a BDA 3.14 in a hybrid 2 channel/HT system and have been experimenting with a direct connection of the 3.14 to a NAD M25 bypassing my Anthem AVM 60 pre/pro.  The configuration has brought a noticeable improvement to the sound compared to using the AVM 60 as an analog pre amp.

I am considering the purchase of a BP 17 cubed for proper two channel listening without having to disconnect/reconnect cables.  The HT bypass feature should allow for easy integration into my existing system.

How does the digital pre amp feature of the 3.14 stack up against the pre amp capabilities of the BP 17?

HI Nit

The 3.14 can be used as a preamp but one of its limitations is the total amount of voltage out capability - it is limited to 2 volts - which is OK in most cases depending on the input sensitivity of your power amp.  The BP17 is far more capable of much larger voltage swings and therefor is much more versatile with different power amplifiers.

I find that with the larger output capability you get better dynamics and more ease in the presentation. The BP-17 also has more flexibility to the type of source as well - analog,
Phono, Digital etc.

The main issue though is when you use a Digital Volume control (like in the 3.14) to drive the power amp the quality of the audio signal is a function of how high in level the output is. With Digital volume as you lower the level you also loose BIT's and therefor quality.  With the BP-17 that is not the case so any volume level still provides maximum performance.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: MellowVelo on 5 Nov 2021, 03:29 pm
Hi James,

I'm considering a BP-17 with the internal MM phono card. My setup does not require a MC input. Are there any advantages to using an internal MM phono stage instead of an external stage? Does the MM circuit benefit from the BP-17's Salomie circuit and power supply?

Thanks for your insight!
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 Nov 2021, 04:15 pm
Hi James,

I'm considering a BP-17 with the internal MM phono card. My setup does not require a MC input. Are there any advantages to using an internal MM phono stage instead of an external stage? Does the MM circuit benefit from the BP-17's Salomie circuit and power supply?

Thanks for your insight!

Hi

The BP17 Cubed has the Salomine circuit and the MM stage is identical to the external unit.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: MellowVelo on 5 Nov 2021, 04:30 pm
Hi

The BP17 Cubed has the Salomine circuit and the MM stage is identical to the external unit.

james

Hi James,

Thanks for your response. Let me rephrase my question. Since the MM stage is identical, does it benefit from being directly connected to the Salomie circuit? I can imagine that this direct connection could be beneficial for reducing noise because it eliminates a set of interconnects. On the other hand, are there greater gains to be realized by using the external phono stage, which fully isolates the MM circuit from any potential EMI/RFI interference inside the BP-17? Ultimately, I'm trying to understand if there's any difference in performance between the two setups. I'm just interested in the quietest phono playback possible.

I hope that my question makes sense. Thanks for your time.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 Nov 2021, 07:42 pm
Ah I see - yes I agree the signal path is much shorter with the built in phono stage - and yes attention has to be paid to noise issues when doing so.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 6 Nov 2021, 02:05 am
I have the internal phono option in my BP17 Cubed and it sounds very good and quiet.  If there's any noise it is below the noise floor of the line stage itself (I don't hear any more noise on the phono input than I do when line level inputs are selected)! 

Since you only need MM phono this is the most logical and economical way to go.  Even if you need MC phono, adding the TF2 step-up transformer to the internal solution is still more economical.

Keep in mind the Bryston BP2 phono stage requires you to buy an external power supply (MPS2 or PS3) which makes the decision to go internal even easier.  The only benefit I can see for an external phono stage is if you need adjustable cartridge loading.

See here for specifics on the various options:
https://www.audioadvisor.com/prodinfo.asp?number=BYBP2MMMC
Title: Re: Bryston BP17 Cubed preamplifier
Post by: clpetersen on 4 Dec 2021, 03:42 pm
Hello all -
I have a modest Bryston stack (2.5B-3 amplifier, BP17-3 with phono stage and the BHA-1).  Very occasionally, the BP-17 lights up several indicators at once - nothing audible happens, just the lights. Seems to be static sensitive - noticed this first time in many months last evening, dry and cold here in New England. Pressing the balance button immediately clears rogue lights.

So, anyone else experience this? any remedies?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 4 Dec 2021, 06:37 pm
Very occasionally, the BP-17 lights up several indicators at once - nothing audible happens, just the lights. Seems to be static sensitive - noticed this first time in many months last evening, dry and cold here in New England. Pressing the balance button immediately clears rogue lights.

So, anyone else experience this? any remedies?

I have had rogue lights on Shutdown but never while operating!  Bryston looked at it a few times and just this week determined that firmware somehow got corrupted.  Mike says they re-flashed it and it's fixed now.  I should be getting it back next week.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: clpetersen on 4 Mar 2022, 07:11 pm
Hi all - anyone know if the Trigger 2 output on the BP-17 cubed can set to be always on (as the Trigger 1 is)?
I don't have the remote but can borrow one. Is there an internal jumper perhaps?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 4 Mar 2022, 10:37 pm
You would have to enable it for every input.  That should achieve the same thing.

I programmed this particular function to a soft key on my Harmony remote so it is very quick and easy to enable/disable the trigger.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: clpetersen on 4 Apr 2022, 06:59 pm
Thank you Stefan - sorry I missed your reply till now.
Title: Re: Bryston BP17 Cubed preamplifier - USB on DAC
Post by: clpetersen on 4 Apr 2022, 07:02 pm
This is for James/Mike and design team -

-will the BR-20 DAC card work in the BP-17-cubed?

-if not, is there a plan to add a USB input to the current DAC card for the BP-17 cubed?

Lack of a USB input has held me back on this card.
Title: Re: Bryston BP17 Cubed preamplifier - USB on DAC
Post by: James Tanner on 4 Apr 2022, 07:07 pm
This is for James/Mike and design team -

-will the BR-20 DAC card work in the BP-17-cubed?

-if not, is there a plan to add a USB input to the current DAC card for the BP-17 cubed?

Lack of a USB input has held me back on this card.

Hi cipet

No the BR20 DAC card would not work in the BP-17 as it would require a redesign.

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: mr_bill on 5 May 2022, 01:29 am
Can you switch between green and blue leds in the field? (BP17 Cubed)
Or does that have to be ordered that way. Wondering if there’s an internal setting to change the color.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 May 2022, 10:32 am
Can you switch between green and blue leds in the field? (BP17 Cubed)
Or does that have to be ordered that way. Wondering if there’s an internal setting to change the color.

I think it is internal with some clips - need to check with engineering

james
Title: Re: Bryston BP17 Cubed preamplifier
Post by: James Tanner on 5 May 2022, 06:52 pm
James

You are correct, there is a 3 pin connector
with a shorting jumper that can be repositioned to select color.
It is on the back side of the front PCB.
Title: Re: Bryston BP17 Cubed preamplifier
Post by: mr_bill on 5 May 2022, 07:53 pm
Thanks James - that sounds like a simple thing that could be done by a customer in the field if I’m reading that correctly?
Title: Re: Bryston BP17 Cubed preamplifier
Post by: Stefan_DR3 on 10 May 2022, 03:35 pm
Thanks James - that sounds like a simple thing that could be done by a customer in the field if I’m reading that correctly?

Yes, I have done it and I believe the jumpers were clearly labeled or at least obvious in their location.