28B Cubed Mono Amplifier

28B Stack 17 silver white wall-web

Besides the fact that this is one of the most powerful amplifiers on the market and can drive virtually any loudspeaker with total grace and ease, the 28B³ monoblock amplifiers are some of the finest sounding models ever at any power output. These amplifiers take complete control over your loudspeakers and command them to be their best. Bryston first-to-last-watt philosophy demands that each of our products sounds equally amazing at all power output levels. There is no product we have ever engineered that demonstrates this philosophy better than the 28B³. Even if you don't need all the power these amps offer, you owe yourself the pleasure of a demonstration. Hear the 28B³ today.


  • Balanced XLR and Single ended RCA input
  • Dual binding post pairs
  • Thunderous 1000W into 8 ohms (and up to 1800 into 4 ohms)
  • The patented Salomie circuit found in all Cubed Series amplifiers
  • Fully convection cooled means no noisy fans
  • Machined and anodized aluminum enclosure and dress panel
  • Less than 500mW standby power consumption
  • SoftStart microprocessor controlled startup sequence won't trip circuit breakers
  • DC trigger for automated turn on and turn off
  • Legendary Bryston 20 Year Warranty


  • Silver or black faceplate
  • 17” or 19” faceplate (non-rack mountable)
DimensionsInches: 17 or 19 W x 8.1 H x 16.8 or 18.4 (with front handles) D
Weight93 lbs | 42 kg
Frequency Response:<1Hz - 100kHz: -3dB
THD (20Hz-20kHz @Rated Power, 8Ω):<0.005%
Power Output:1000W @ 8Ω | 1800W @ 4Ω
Noise:RCA: -116dB
XLR: -117dB
Input Impedance:Unbalanced 5kΩ
Balanced 5kΩ / leg

The music they reproduce is full-sounding, very powerful with a lot of drive, and the music has a weight and a density, with real substance to it. The sound is very warm, musical and natural sounding. It is never harsh, clinical, nor aggressive or irritating.

George Papadimitriou


You don’t realize just how awesome these amplifiers are until you go back to your favorite 60 watt per channel amp. It just feels small. For everyone that’s said you need big speakers to play music on a big scale, you need big amps too. And these are some pretty damn cool amps.

Jeff Dorgay


These amplifiers are THE MUSIC, no lies, no my-fi sounds, no inventions or fascinating but false fireworks. The music. Stop.

Angelo Jasparro


The improvement in the Bryston 28B amplifier is a very solid bottom end which made the overall tonal balance much better than before and dynamic capability with authority is outstanding on my B&W speakers.

Sung, South Korea


I think these are feeling like amps for life that aren’t going anywhere. I used to have a 150 pound pure Class A space heater called a (removed), and I can’t believe it gets any better than this. I’m just blown away!



Got the Bryston 28B³ amplifiers as planned and after a quick set-up, I had a first listen yesterday: OMG!



I played few albums that I've familiarized myself with over the years and I was shaking my head and saying 'What the heck! This can't be right. It's a SS amp! How come it sounds so beautiful, so neutral, and not missing anything?'... Way to go Bryston. I'm a very happy camper.



Kudo's for creating some of the finest electronics on the planet, at any price! The 28B³ amps are astonishingly good. Run don't walk, to your nearest dealer and hear them for yourself!

Ivan, Legend Audio


Audio doesn't get much better. The system sounds better than ever!

Patrick, Hi-Fi Sales


The 28B³ has remarkable timing accuracy... This is the only power amp that I know of
that does this. Don't hide your light under a bushel, market the 28B Cubed as a successor to all those ultra snooty and expensive Class A tubes and $50K Solid State Flagship amps.

Bruce Bisenz


Best amps I have ever heard! PERIOD.

Bill White, Fred's Sound of Music





Made In Canada


20 Year Warranty on Analog and Loudspeakers


High Performance

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