BDA-2 DAC and BDA-3 DAC

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spitzer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1040 on: 8 Nov 2015, 04:17 pm »
Hi

That is not normal.

james


Hello, Thanks for your answer. So What do you think about faulty? Maybe transformer screw attaches to chassis loosen with Times, or main line ac with dc, what is your opinion James? Thanks in advance.

James Tanner

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1041 on: 8 Nov 2015, 06:31 pm »
Hello, Thanks for your answer. So What do you think about faulty? Maybe transformer screw attaches to chassis loosen with Times, or main line ac with dc, what is your opinion James? Thanks in advance.

Hi

It could be either but I would try it on another power line and see if it still hums.

james

spitzer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1042 on: 9 Nov 2015, 03:27 pm »
Hi

It could be either but I would try it on another power line and see if it still hums.

james

Hello again, ı tried it other power lines, but same result. Then ı measured vdc on mains, it was about 250mv. Nevertheless I dont know if it is reason.

James Tanner

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1043 on: 9 Nov 2015, 03:29 pm »
Hello again, ı tried it other power lines, but same result. Then ı measured vdc on mains, it was about 250mv. Nevertheless I dont know if it is reason.

That is high - do you know if the unit you have is a 220V or a 240V unit?

james


spitzer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1044 on: 9 Nov 2015, 04:53 pm »
That is high - do you know if the unit you have is a 220V or a 240V unit?

james

Hello James, It is 220v unit.

James Tanner

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1045 on: 9 Nov 2015, 05:15 pm »
Hello James, It is 220v unit.

That may explain it - send an email to Mike at Bryston and ask if it can be adjusted to 240V - mpickett@bryston.com

james

Slam Dancer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1046 on: 10 Nov 2015, 04:47 pm »
What is the specs for the power cables that comes with Bryston products?
I would like some shorter ones, just wan't to check that it is ok to change them out.

Tympani

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1047 on: 11 Nov 2015, 02:07 am »
SlamDancer,

Since the Bryston BDP's and BDA's are low-current devices, practically any computer type IEC cable should easily provide enough current capacity to deliver power. Beyond that, however, I feel that any digital component with high end aspirations would definitely benefit from a good-quality shielded cable with quality connectors. The market is full of high end cables sometimes costing more than the components themselves. And yes, I'll admit I have drank the high end cable Koolaid with my components. But I think excellent results can be had from solidly engineered cables from value companies such as DH Labs, where a 3' Encore power cable will cost you about $100, and give superior results over the stock supplied cords. That's just one of many, many options. You might want to consult The Cable Company for trials. I think you will be surprised at audible differences between cables.

Phil A

Re: BDA-2 DAC and BDA-3 DAC
« Reply #1048 on: 11 Nov 2015, 02:43 am »
SlamDancer,

Since the Bryston BDP's and BDA's are low-current devices, practically any computer type IEC cable should easily provide enough current capacity to deliver power. Beyond that, however, I feel that any digital component with high end aspirations would definitely benefit from a good-quality shielded cable with quality connectors. The market is full of high end cables sometimes costing more than the components themselves. And yes, I'll admit I have drank the high end cable Koolaid with my components. But I think excellent results can be had from solidly engineered cables from value companies such as DH Labs, where a 3' Encore power cable will cost you about $100, and give superior results over the stock supplied cords. That's just one of many, many options. You might want to consult The Cable Company for trials. I think you will be surprised at audible differences between cables.
Great advice

Slam Dancer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1049 on: 11 Nov 2015, 11:13 am »
Thanks.
I just want to get rid of some of the cable mess behind my rack. So no need for super Hi-end stuff here, but good quality cables with lenghts approx. 0,5 to 1 meter is what I need.
Just wanted to be sure I'm not doing anything wrong or will make problems with warranty etc.

(Poor English, but I hope you understand what I'm trying to say) :wink:

James Tanner

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1050 on: 11 Nov 2015, 11:17 am »
Hi

No concerns with warranty using different power cords.

james

Slam Dancer

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1051 on: 11 Nov 2015, 12:39 pm »
Hi

No concerns with warranty using different power cords.

james
Thank you.

Ansum

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1052 on: 11 Nov 2015, 01:37 pm »
I've been wondering about how a simple passive type of preamp/volume controller might perform compared to an active one when used between a BDA-2 DAC and a 4BSST2 power amp. As I understand it the output of the BDA-2 should be high enough that all one really needs from the volume control is attenuation and not amplification (right?).

There seem to be quite a few options for passive preamps/volume controllers from simple potentiometers like the ones below....
https://emotiva.com/products/electronics/control-freak
http://www.tcelectronic.com/level-pilot/
...to more sophisticated and expensive solutions like TVC and LDR types of preamps like the following...
http://www.mfaudio.co.uk/Menu2/preamplifiers.htm
http://www.tortugaaudio.com/passive-preamps/

All I really need a preamp for is to control the volume and ensure a good interface between a single source (BDA-2) and my power amp, so a minimalistic approach is fine with me as long as the sound quality does not suffer.

BrisbaneTom

Re: BDA-2 DAC and BDA-3 DAC
« Reply #1053 on: 26 Jan 2016, 03:18 am »
Still working on it but it will exist.

james

Hi James,

I was wondering if you could give a rough idea of when the new CD player will be available?

Thanks,

Tom

James Tanner

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1054 on: 26 Jan 2016, 03:25 am »
Hi James,

I was wondering if you could give a rough idea of when the new CD player will be available?

Thanks,

Tom

Hope to show it at the Montreal Audio Show in March

james

BrisbaneTom

Re: BDA-2 DAC and BDA-3 DAC
« Reply #1055 on: 26 Jan 2016, 03:56 am »
Hope to show it at the Montreal Audio Show in March

james

Excellent, thanks James.

Grant Hill

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1056 on: 26 Jan 2016, 10:29 am »
Wow great news!

werd

Re: BDA-2 DAC and BDA-3 DAC
« Reply #1057 on: 26 Jan 2016, 03:54 pm »
I've been wondering about how a simple passive type of preamp/volume controller might perform compared to an active one when used between a BDA-2 DAC and a 4BSST2 power amp. As I understand it the output of the BDA-2 should be high enough that all one really needs from the volume control is attenuation and not amplification (right?).

There seem to be quite a few options for passive preamps/volume controllers from simple potentiometers like the ones below....
https://emotiva.com/products/electronics/control-freak
http://www.tcelectronic.com/level-pilot/
...to more sophisticated and expensive solutions like TVC and LDR types of preamps like the following...
http://www.mfaudio.co.uk/Menu2/preamplifiers.htm
http://www.tortugaaudio.com/passive-preamps/

All I really need a preamp for is to control the volume and ensure a good interface between a single source (BDA-2) and my power amp, so a minimalistic approach is fine with me as long as the sound quality does not suffer.

Not a problem, any BDA dac can drive a passive. Used a BDA2 TVC into a 14B with no problems. I want to try one of the Tortuga passives. It's just the sound of a passive and not a line stage you have to get use to and decide whether you like or not.

rollo

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Re: BDA-2 DAC and BDA-3 DAC
« Reply #1058 on: 26 Jan 2016, 04:22 pm »
  Passives require two things to make all sound its best The CDP or DAC  needs to have an output of 2V minimum. More the better. The amps input sensitivity should be less than 1mv. Cable runs should be as short as possible to amps as well.
  I find most passives lean in character except transformer based ones. Slage Autoformers and Promithius come to mind. Top of the heap would be Billington transformers in silver oh my !.


charles
   

srb

Re: BDA-2 DAC and BDA-3 DAC
« Reply #1059 on: 26 Jan 2016, 04:46 pm »
The CDP or DAC  needs to have an output of 2V minimum. More the better. The amps input sensitivity should be less than 1mv.

That would be a catastrophic mismatch!  Input sensitivity < 1V ?

Of course that would suggest that none of the Bryston power amplifiers would be optimal.

Steve