Customer Feedback on 4B SST2

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James Tanner

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Customer Feedback on 4B SST2
« on: 8 Mar 2011, 04:30 pm »
Bryston-A Sleeping Giant

I have been a fan of Bryston products for years, but until recently,like many people, thought of them as best suited for bass applications. I bought my first Bryston product, a 4B amplifier back in the late 70's, which I believe makes it the second generation of this longstanding product that was the cornerstone of this amazing company. It produced great bass, but was only quite good in the midrange and a bit transistor sounding in the highs. 

I then went on to own many amplifiers, both Class A and AB, tube and transistor and then migrated to bi-amped systems. That brought me back to Bryston for the bass, this time a pair of 7B monoblocks, which were superb for bass, but like before only quite good in the mids and a little less good for the highs.

Then divorce hit and all of my amps went bye-bye, as did everything else in my system, save for my trusty McIntosh MR 71 tube tuner that I owned for more than 40 years. As I rebuilt my audio system, with a much keener eye for audio value for the dollar, I bought a used Bryston 4B SST from about 8 years ago and to my surprise found that the while the bass as good as ever, the midrange and highs had improved markedly to the point that I could easily be happy with the amp running full range. Granted I was feeding it with an excellent tube preamp using tweaked 6H30 tubes and HiFi Tuning Supremo fuse plus absolutely beautifully smooth and articulate Kubala Sosna interconnects. So even if the Bryston was the weakest link, it was now darned good full range.

At the last CES, I got to hear the latest iteration of the Bryston in two demo's, Bryston's and Magnepan's 3.7 demo. Granted Magnepan used the Bryston 28's (1000 watt mono blocks) versus the 4B's 300 wpc into 8 ohms, but all of Bryston's amps have similar driver sections and thus sound very similar, with slight incremental gains as one moves up the chain starting at the 4B level.

For me, the 3.7's driven by the Bryston 28's and 1.7's driven by the 4B was the best sound at the show and much better sounding than the 3.7's in the ARC room. So I took the plunge, sold the Mac MR 71 and used the money to buy a new Bryston 4B SST2 with the latest mods and their DAC so that I could build a music server. As a true test I sent the amp before I inserted it into my system to my best friend who is also a member on this site and has probably one of, if not the best sounding system I have ever heard, powered by some well regarded $50,000 tube monoblocks and a pair of Gotham subwoofers and some of the larger Pipedreams in a custom designed room. He substituted the Bryston in place of the $50,000 reference tube amps and pronounced the amp a contender and in the same class, albeit somewhat different sounding than his behemoths (he uses DSP to tune his speakers to his amps and did not change the settings for the Bryston). Not bad for an amp that cost 9% of what his cost and a link in a highly evolved system.

When I finally got a chance to insert the Bryston 4B SST2 into my system, replacing the older 4B SST, I was pleased beyond my expectations. While I use a subwoofer for the extreme lows, I allow my main speakers to roll off naturally, which is probably somewhere in the low 30's or high 20's. My mids and highs are planar magnetic ribbons and highly revealing, pronounced by my friend as better in some ways than his Pipedream highs.. Once the amp broke in to the point that I cannot hear any more changes (50-60 hours of active signal), I must say that like Harry Pearson said about its big brother the 28, in its latest iteration the Bryston products are not only probably either the best transistor amps on the market at any price, but at least the equal of any amp. Simply put, the 4B SST2 is amazing. At the price, it is a no brainer.

You simply cannot hear the amp because it is so cohesive and the highs are completely without any electronic sound, yet razor sharp in their speed and images. In my opinion, the midbass is the best I have ever heard, bar none. The bass is so tight and forceful, that things are now moving inside my kitchen cupboards. and I have to turn my subwoofer down to compensate for the extra bass out of my full range speakers. Hear is my biggest complaint, if you can call it that--there is no fuse, but instead a circuit breaker so I cannot insert a HiFi Tuning Supremo fuse that made such a profound change in my BAT VK 32 SE preamp.

I am still working with the Bryston DAC so I do not feel I can truly comment at this point, but initial tests suggest that its sound is essentially the same as amp, not surprising since they both use similar driver stages for their outputs.

Russ The Mobiusman

Brian Cheney

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Re: Customer Feedback on 4B SST2
« Reply #1 on: 8 Mar 2011, 04:45 pm »
I have a pair of the 4BSST2 with about 100hrs on them, and my impressions match that of the poster.  Solid state is getting very, very good, and the latest generation Brystons are perfect examples.  My compliments to the designers and assemblers.  I also find the cosmetic very attractive (mine have the 19" silver fronts)

Brian Cheney
Pres, VMPS Ribbon
www.vmpsaudio.com

werd

Re: Customer Feedback on 4B SST2
« Reply #2 on: 8 Mar 2011, 04:56 pm »
I have a pair of the 4BSST2 with about 100hrs on them, and my impressions match that of the poster.  Solid state is getting very, very good, and the latest generation Brystons are perfect examples.  My compliments to the designers and assemblers.  I also find the cosmetic very attractive (mine have the 19" silver fronts)

Brian Cheney
Pres, VMPS Ribbon
www.vmpsaudio.com

The 4B  works really nice with Wywires also. Excellent match for SS and getting that midrange out in bloom. Didn't really care for the sst series in 4B but the new sst/2 is a different amp. Owned em back to back.

vegasdave

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Re: Customer Feedback on 4B SST2
« Reply #3 on: 10 Mar 2011, 01:27 am »
I agree with this review 1000 percent. You guys know what you're doing up there in Peterborough.

marsboer

Re: Customer Feedback on 4B SST2
« Reply #4 on: 10 Mar 2011, 01:43 am »
I have owned the Bryston 4B SST² since july '10 and I am very pleased too. I could hear that this really was an outstanding amplifier. In my case it replaced Electrocompaniet AW400 monoblocks, driving B&W 805S. Even with the 805S I immediatly noticed that the bass control really is exceptional on the 4B SST². The amplifier is very transparent and achieves IMO a perfect neutral balance which never sounds "grey" like some other so called transparent equipment.

I did have uncontrolled shutdowns and power on issues with two different (although serial number related) amplifiers though. They both had out-of-the-box issues with bias and needed adjustments. So much for Bryston quality control at the factory. I was very disappointed. But now that the issue is fixed it has worked like a dream and it will probably only be replaced by some future Bryston amp.

I also have the Bryston BDA-1 which also have outstanding transparent and musical sound. I love them both. Sadly the Bryston pre doesn't have hometheater pass through so I have to use another (actually quite Bryston looking) preamp, GamuT D3.

My current speakers are Klipsch RF-7 II which I utterly love even though I hate to admit it since I have used B&W all my Hi-Fi life. My previous speakers were B&W 805S, B&W 683 and B&W 802D.

Napalm

Re: Customer Feedback on 4B SST2
« Reply #5 on: 10 Mar 2011, 03:21 am »
I did have uncontrolled shutdowns and power on issues with two different (although serial number related) amplifiers though.

Gremlins!




vegasdave

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Re: Customer Feedback on 4B SST2
« Reply #6 on: 10 Mar 2011, 03:50 am »
I have owned the Bryston 4B SST² since july '10 and I am very pleased too. I could hear that this really was an outstanding amplifier. In my case it replaced Electrocompaniet AW400 monoblocks, driving B&W 805S. Even with the 805S I immediatly noticed that the bass control really is exceptional on the 4B SST². The amplifier is very transparent and achieves IMO a perfect neutral balance which never sounds "grey" like some other so called transparent equipment.

I did have uncontrolled shutdowns and power on issues with two different (although serial number related) amplifiers though. They both had out-of-the-box issues with bias and needed adjustments. So much for Bryston quality control at the factory. I was very disappointed. But now that the issue is fixed it has worked like a dream and it will probably only be replaced by some future Bryston amp.

I also have the Bryston BDA-1 which also have outstanding transparent and musical sound. I love them both. Sadly the Bryston pre doesn't have hometheater pass through so I have to use another (actually quite Bryston looking) preamp, GamuT D3.

My current speakers are Klipsch RF-7 II which I utterly love even though I hate to admit it since I have used B&W all my Hi-Fi life. My previous speakers were B&W 805S, B&W 683 and B&W 802D.

Would you say the Klipsch are better than the B&Ws?

BrystonFan

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Re: Customer Feedback on 4B SST2
« Reply #7 on: 11 Mar 2011, 04:00 am »
Better than the B&W 802D.... :o

motorcitym3

Re: Customer Feedback on 4B SST2
« Reply #8 on: 11 Mar 2011, 04:09 am »
I have owned the Bryston 4B SST² since july '10 and I am very pleased too. I could hear that this really was an outstanding amplifier. In my case it replaced Electrocompaniet AW400 monoblocks, driving B&W 805S. Even with the 805S I immediatly noticed that the bass control really is exceptional on the 4B SST². The amplifier is very transparent and achieves IMO a perfect neutral balance which never sounds "grey" like some other so called transparent equipment.

I did have uncontrolled shutdowns and power on issues with two different (although serial number related) amplifiers though. They both had out-of-the-box issues with bias and needed adjustments. So much for Bryston quality control at the factory. I was very disappointed. But now that the issue is fixed it has worked like a dream and it will probably only be replaced by some future Bryston amp.

I also have the Bryston BDA-1 which also have outstanding transparent and musical sound. I love them both. Sadly the Bryston pre doesn't have hometheater pass through so I have to use another (actually quite Bryston looking) preamp, GamuT D3.

My current speakers are Klipsch RF-7 II which I utterly love even though I hate to admit it since I have used B&W all my Hi-Fi life. My previous speakers were B&W 805S, B&W 683 and B&W 802D.

I've been kickin the idea of changing out my Modded KLF-30s, DeanG cross-overs & updated cabinets, for a set of the RF7 II.  Have they toned down the highs from the
RF7 series?!?!?  I love the kick of the rf7's but preferred the mid range of mine.
What to do  What to do.   

I added a Modwright SWL 9.0 SE Signature tube pre-amp to the Bryston...man what a nice combo! 

HsvHeelFan

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Re: Customer Feedback on 4B SST2
« Reply #9 on: 11 Mar 2011, 05:11 am »
I've owned my 4B-ST for 9 1/2 years.  It has brought me many hours of pure musical bliss.

Buying a Bryston was the best money I've ever spent on audio.   It was worth every penny.

HsvHeelFan

marsboer

Re: Customer Feedback on 4B SST2
« Reply #10 on: 16 Mar 2011, 08:52 pm »
Better than the B&W 802D.... :o

No and yes. There is absolutely no question that the 802D is more neutral and have less coloration.
However the RF-7 II is more room friendly as the horn (down to 1200Hz) makes room reflections less of a problem where the 802D is a lot more demanding. I find that the RF-7 II bass fits a lot better in my room, but this is probably room dependant and not by design. All in all the RF-7 II have a sweet top with no tendency towards harshness, actually the opposite. 805S have more artificial "zing" in the top than the RF-7 II have.

But actually, given a perfect room for both speakers, the RF-7 II have some qualities that even the 802D can't match and that is the awesome authority and general top to toe attack. I do feel that the 3D pinpointing is actually a bit stronger on the RF-7 II also, maybe because more high frequency content reaches your ears because of the horn or the almost point source construction (the horn delivers from 1200hz to 24000hz).

So if I could get both speakers for free but had to keep my current room I wouldn't hecitate to select the RF-7 II over 802D, but the 802D is a better "hi-fi" speaker for absolute neutrality if you have a room with the space to place them far from any walls.
The build quality is however very low on the whole RF II series. I had to glue the bass ports to make them stick, the speaker terminals look very cheap, and the veneer doesn't really take any stress at all before they crack along the sides.

I also have 2xJL Audio Fathom F112 subs, a RC-64 II and RS-62 II for the rears and a Yamaha RX-V3900 for some additional surround action.

vegasdave

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Re: Customer Feedback on 4B SST2
« Reply #11 on: 17 Mar 2011, 12:12 am »
Cool. Thanks for the review and the info.

etcarroll

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Re: Customer Feedback on 4B SST2
« Reply #12 on: 17 Mar 2011, 12:18 am »
I added a Modwright SWL 9.0 SE Signature tube pre-amp to the Bryston...man what a nice combo!

I have a Purity One pre that I just rolled some 1964 Mullards into, man does this sound sweet with my 4B that will be 30 next month. I just added an EAR 834P for phono-pre, it came with Electro-Harmonix tubes, but I have 60's era Mullards on order for it as well. The 4B and all those tubes just makes me grin.

G E

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Re: Customer Feedback on 4B SST2
« Reply #13 on: 18 Mar 2011, 02:33 am »
I have a pair of the 4BSST2 with about 100hrs on them, and my impressions match that of the poster.  Solid state is getting very, very good, and the latest generation Brystons are perfect examples.  My compliments to the designers and assemblers.  I also find the cosmetic very attractive (mine have the 19" silver fronts)

Brian Cheney
Pres, VMPS Ribbon
www.vmpsaudio.com

Hi Brian!  Good to see you here.  I have a pair of your RM30Ms that I picked up a year ago.  I also got a 4Bsst2 a few months later- silver 17".  At about the 100 hours mark on the amp, magic began to happen.  Well recorded music is a dream on this system (Bel Canto Pre 6 is ahead of the Bryston:  It's a great analog only unit and lets me have two 5.1 sources). 

I'd really gotten into multichannel recordings prior to my system reset.  This system images so well in stereo that I find that I am not playing my MC stuff as much.  Vinyl is particularly satisfying and that is with a dime store set up (old HK720 turntable and $35 Grado from 10 years ago and a Hagerman Bugle phono pre I built this winter).  Lots of acoustic treatments in the corners and reflection points, unremarkable cables throughout.

It's a real kick in home theater too.  The macro dynamics are superb as would be expected, but it's the little things that really come through the mix: like the bark of the tires on Batman's motorcycle when he peals out in as scene from Dark Knight (BluRay).

Bryston 4bsst2 + VMPS Rm30m = sonic bliss