Review: Bryston 4B-ST Amplifier


Category: Amplifiers

Why do so many people, including dealers, dismiss Bryston? I have had this unit for two years now and it has done nothing but performed remarkably well and, as my habits require, with all kinds of recordings. Sure, some amps might sound better with small ensembles or female vocals, but if one listens to everything from Beethoven's Eroica to Sebadoh, you need equipment that brings you a full tonal spectrum, and I haven't found a whole lot lacking in the Bryston, particularly since I added the Richard Gray and a PS Audio Lab Cable II to the mix. But let me be more precise.
The Bryston provides consistent, quiet power, and is responsive to dynamic recordings, meaning, it leaps when I (or the CD player) say "leap." The Eroica, Hogwood version, starts out fast and furious. Likewise, Maogwai's slow, ascending jams ascend, and they burst when the lads kick it in, distortion and all. At first I thought it sounded a wee bit bright, e.g. with muted trumpets, solo violin, say, Pearlman's Bach recordings, or Dolphy's flute on Coltrane's "Ole," but that's all but disappeared now that I've paired it with the Musical Fidelity Pre and cleaned up the power with cords, a line conditioner, and PS Audio's fancy, shiny, plug. I imagine I might find a sweeter amp, but will it have the dynamic range and power of the Bryston? I don't know, and I'm unconvinced but what I've *read* (yes, I know-- no local dealers) that Classe or Nelson Pass gear will do the trick. And then there is the bass. Some folk think Maggies lack bass. WIth my power in order, my IIIA's have all the attack and richeness I want from the low end. (I hate boomy bass -- it blunts music and highlights what is often the least interesting aspect of a recording IMHO.) Take Acetone's *York Blvd.* All of the texture and richness of the erstwhile Richie's bass sings. And the two basses, one bowed, the other plucked, from Colktrane's *Ole* are articulate. Yes, articulate bass. It's a pleasure and the Bryston delivers it. Questions: At times I wonder if the sound stage could be bigger. I doubt it could be deeper, though. Dimensionality is great in my system. Also, I've heard folk complain of grain, but I'm not sure what they're talking about. If someone could help me with a concrete musical reference, I'd appreciate it until I discovered it and ended up wanting a new amp. Gripe: As many note, the binding posts area pain in the keester. Not a crucial issue in my view. Bonus: Twenty year transferable warranty. That makes this one very sound buy, new or used, but particularly used.

Associated gear
Magnepan IIIA
MFidelity A3cr Pre-amp
Arcam Alpha 9 CD
Yamaha CT7000 Tuner
Tara Labs RSC Prime 5000 Sp. Cable
Analysis Plus Silver Oval IC's
PS Audio Power Cord
R Gray Line Conditioner

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jlysaker

Showing 1 response by shadorne

Nice review. I am not sure I agree with all the detailed "sonic qualities" discussion in the thread. As far as I am concerned the 4B-ST must be one of the all-time best value power amps available second hand. A "no-brainer" if you are like me and you want high power and damping to control accurately the music (especially bass) and don't want "colouration" in the sound. I would say the Bryston 4B-ST is about as neutral sounding as they come. And with the 20 year guarantee you are covered even on a second hand purchase! Amazing.

I am sad to report what others may have also found in terms of reliability of high power, high current audio gear that runs hot enough to toast bagels: my SONY TA-N80ES power amplifier died (one channel) after 6 years (one year after the warranty expired!*%$#) ....that is when I got the Bryston 4B-ST. (I still own a third 220 Watts PC power amp that also died on one channel and was repaired under warranty..this one was not a SONY but an old Kenwood M2))

Could I tell a difference in the sound of these similarly powerful amplifiers....NO

Am I more comfortable knowing that I have about 12 years left on my Bryston 4B-ST warranty....YES ABSOLUTELY

Do I blame SONY .....no not at all...I am not trying to scare anyone away from SONY as they make great products too. I used the SONY amplifier an awful lot and moved house (shipping/storage) three times. I also blew a couple of drivers over that 6 year period...so I am sure I contributed to the SONY power amp's demise.