2.5B³ Amplifier

The Bryston 2.5B3³ is a compact, high quality, dual-channel (stereo) amplifier intended for use in home sound systems requiring a musically accurate, extremely reliable, no compromise power source.

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

Power Capabilities:
  • 135W into 8Ω
  • 180W into 4Ω
  • 270W into 8Ω (Bridged Mono)

Features:

  • Active extremely low distortion input buffer
  • Balanced and Single Ended audio inputs
  • Selectable gain at 23dB 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 360W Channel
Options:
  • Available with silver or black faceplate (2U + .55”)
  • 17” or 19” 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 135W
  • Noise: ≤ -115dB @ full bandwidth
  • Slew Rate: >60V/µS
  • Power Bandwidth: <1Hz to >100kHz
  • Damping Factor: >500 at 20Hz (8Ω)
  • Switchable Gain: 23dB or 29dB
Reviews:

Analog/Speaker Warranty

Unprecedented. Unequalled.

Warranty Alert: Unauthorized Dealers

Latest News
10/05 - This weekend, Bryston at RMAF 2018

09/15 - Gary Dayton chats about the SP4 at CEDIA 2018

07/05 - Gary Dayton talks about the SP4 with CEPro