Bryston Stereo Power Amplifier (4B³)

$8,245.00

  • Stereo Power Amplifier
  • 300 Watts/ Ch (8 Ohms)
  • 500 Watts/ Ch (4 Ohms)
  • Canadian Designed And Built

4B³ Amplifier

The Bryston 4B³ is a dual channel (stereo) amplifier which is acclaimed internationally as being suited for the finest and most sophisticated sound systems. It is currently our most popular Cubed Series model.

Inputs: 2x Balanced Inputs (XLR or TRS), 2x Single Ended Inputs (RCA)

Power Capabilities:

  • 300W into 8Ω
  • 500W into 4Ω
  • 900W into 8Ω (Bridged Mono)

Features:

  • Active extremely low distortion input buffer
  • Balanced and Single Ended audio inputs
  • Selectable gain at 23 or 29dB
  • Regulated power supplies to all voltage gain stages
  • Independent power supplies for each channel
  • Convection cooled and housed in a fully aluminum chassis.
  • No fans or other moving parts
  • Bridging switch configures amplifier into a single 900W Channel

Options:

  • Available with silver or black faceplate (3U + .55”)
  • 17” (without handles) or 19” (with handles) faceplate available (non-rack mountable)
  • Rack mountable Pro Edition available in black (see Cubed Pro for more details)

Specifications:

  • Harmonic Distortion: ≤ .005% from 20Hz to 20kHz at 300W
  • Noise: ≤ -119dB @ full bandwidth
  • Slew Rate: >60V/µS
  • Power Bandwidth: <1Hz to >100kHz
  • Damping Factor: >500 at 20Hz (8Ω)
  • Switchable Gain: 23dB or 29dB

Reviews:

  • “The 4B³ is a control freak in terms of grabbing hold of your speakers’ drivers and maintaining bass control, depth and power.” – Edgar Kramar, Audio Esoterica
  • “These dig right to the heart of the music and result in one of the best all-round power amplifiers I have encountered at this price.” – Adam Smith, Hi-Fi News & Record Review

Awards:

  • SoundStage Products of the Year

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