28B SST3 Mono

The Bryston 28B³ is their flagship power amplifier, a single channel (mono) amplifier which sounds incredibly detailed and musical at very low levels and maintains that same sophistication and drive capability with even the most difficult inefficient speakers, large or small.


20 year warranty

Finance example

£2,150.00 initial 20% deposit then £286.67 per month for 30 months. Other finance terms available. Finance subject to status

28B SST3 Mono


Bryston amplifiers enjoy universal acclaim from both audio professionals and music enthusiasts unlike any other brand in the world. As a result of relentless passion for superb performance and unparalleled build quality, Bryston engineers have continued to innovate since our groundbreaking premier in 1973. The Cubed Series amplifiers continue this tradition of excellence highlighted by lower distortion, increased bandwidth and reduced noise, presenting listeners with a crystal clear window into their most cherished recordings.Bryston Cubed Series Amplifiers, featuring patented circuitry developed in conjunction with Dr. Salomie, Ph.D., move the listener ever closer to the music with such visceral realism, the experience is most comparable to live performance.

This is the Bryston Cubed Series.

Power Capabilities:

  • 1000W into 8Ω
  • 2000 VA Power Supply


  • Balanced and unbalanced inputs
  • Selectable gain at 23 or 29dB
  • No fans or other moving parts
  • Regulated power supplies to all voltage gain stages
  • Convection cooled and housed in a fully aluminum chassis
  • Energy storage power transformers maximize dynamic range


  • Harmonic Distortion: < .005% from 20Hz – 20kHz at 1000W
  • Noise below full output: -116dB single ended, -117dB balanced
  • Slew Rate: < 65V/µS
  • Power Bandwidth: .5Hz – > 100kHz
  • Damping Factor: > 500 at 20Hz (8Ω)
  • Gain: Switchable – 29dB


  • Available with silver or black faceplate (4U + .55”)
  • 17” (without handles) or 19” (with handles) faceplate available (non-rack mountable)

Tech spec

Power Output Per Channel

8Ω Load: 1000W

Sensitivity (into 8Ω)

High: 1.0V 100W

High: 3.2V 1000W

Input Impedance



Pounds: 93; Kilograms 42

Power Consumption (Watts)

Standby: <0.5

Idle: ≤225

1000W 8Ω: 1790

166W 8Ω: 810

For more information click here to visit the Bryston website


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