28B³ Amplifier

The Bryston 28B³ is our 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.

Inputs: 1x Balanced Inputs (XLR or TRS), 1x Single Ended Inputs (RCA)

Power Capabilities:
  • 1000W into 8Ω
  • 2000 VA Power Supply


  • Balanced and Single Ended audio 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 to 20kHz at 1000W
  • Noise below full output: -116dB single ended, -117dB balanced
  • Slew Rate: >65V/µS
  • Power Bandwidth: .5Hz to >100kHz
  • Damping Factor: >500 at 20Hz (8Ω)
  • Switchable Gain: 23dB or 29dB
  • Available with silver or black faceplate (4U + .55”)
  • 17” (without handles) or 19” (with handles) faceplate available (non-rack mountable)

Analog/Speaker Warranty

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