© 2019 by AFA Electronics Pte Ltd. All Rights Reserved.

4B CUBED STEREO AMPLIFIER

The 4B3³ is the latest version of Bryson's venerable 4B amplifier, and the most popular model in the Cubed amplifier series.

Power:

300W into 8Ω

500W into 4Ω

900W into 8Ω (Bridged Mono)

Specifications:

Harmonic Distortion: ≤.005% from 20Hz to 20kHz at 300W

Noise below full output: -110dB single ended, -113dB balanced

Slew Rate: >60V/µS

Power Bandwidth: .5Hz to >100kHz

Damping Factor: >500 at 20Hz (8Ω)

 

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​

Manual