Bryston 28B³ Mono Power Amplifier
Bryston 28B³ Mono Power Amplifier Bryston 28B³ Mono Power Amplifier

28B³ Mono Power Amplifier

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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.


  • Balanced and Single Ended audio inputs
  • 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

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Frequency Response
<1Hz to 100kHz (-3dB)
Total Harmonic Distortion Plus Noise <0.005%
Power Output 8 Ohms
Power Output 4 Ohms
Noise - Unbalanced (RCA) -116dB
Noise - Balanced (XLR) -117dB
Input Impedance - Unbalanced (RCA) 15 kOhms
Input Impedance - Balanced (XLR) 15 kOhms / leg
Standby Power Consumption <500MW
Dimensions WxHxD 17/19" x 8.1" x 16.8"
Dimenions (With Front Handles) WxHxD 17/19" x 8.1" x 18.4"
Weight 93lbs (42kg)