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The Bryston 3B Cubed Stereo Amplifier delivers outstanding sound quality and power for discerning audiophiles and professional audio systems. With its robust design and exceptional clarity, this amplifier is perfect for driving a wide range of speakers. The 3B Cubed features ultra-low distortion, a wide dynamic range, and the reliability that Bryston is renowned for, making it an excellent choice for home and studio environments alike.

Key Features

  • Power output of 200 watts per channel at 8 ohms
  • Ultra-low distortion for clean, detailed sound
  • Independent power supplies for each channel
  • Balanced XLR and unbalanced RCA inputs for versatile connectivity
  • Class AB design ensures high efficiency and reliability
  • Precision-engineered toroidal transformer for stable performance
  • Durable construction with a 20-year warranty

Why Buy

The Bryston 3B Cubed Stereo Amplifier is designed for those who demand exceptional audio performance. Its high power output, pristine clarity, and reliability make it a cornerstone of any serious audio system.

  • Provides powerful and accurate sound for various setups
  • Versatile inputs and outputs for easy system integration
  • Backed by Bryston’s industry-leading 20-year warranty

Product Specifications

Bryston 3B Cubed Stereo Amplifier - Specifications
Product Type Stereo Power Amplifier
Brand Bryston
Model 3B Cubed
Amplification & Output
Amplifier Class Class AB
Channels Stereo (2 Channels)
Output Power 300W per channel (8 ohms)
Total Harmonic Distortion (THD) 0.005%
Signal-to-Noise Ratio (SNR) 120 dB
Frequency Response 20 Hz - 20 kHz
DAC & Audio Features
DAC Chip N/A
Supported Audio Formats Analog Stereo
Audio Inputs XLR, RCA
Audio Outputs Speaker Binding Posts
Connectivity & Networking
Wi-Fi N/A
Bluetooth N/A
Ethernet (LAN) N/A
AirPlay 2 N/A
Streaming Services N/A
Design & Build
Form Factor Stereo Power Amplifier
Dimensions (W x H x D) 19.0 x 7.0 x 17.5 inches
Weight 36 lbs
Front Panel Display No
Finish Black
Power Supply & Consumption
Power Consumption 800W
Power Supply 120V AC
Standby Power 0.5W
Additional Features
Remote Control No
Customizable Settings Yes (Gain Control)
Speaker Impedance Range 4 - 8 Ohms

Bryston 3B Cubed Stereo Amplifier FAQs

What is the power output of the Bryston 3B³ Cubed Stereo Amplifier?

The Bryston 3B³ delivers 200 watts per channel into 8Ω and 300 watts per channel into 4Ω. It also offers a bridged mono mode providing 400 watts into 8Ω.

What are the dimensions and weight of the amplifier?

The amplifier measures 17 inches in width, 8.1 inches in height, and 10.75 inches in depth (12.75 inches with front handles). It weighs 35 lbs (16 kg).

What is the warranty period for the amplifier?

The Bryston 3B³ features both balanced XLR and unbalanced RCA inputs, offering flexibility for various audio sources.

What type of inputs does the amplifier support?

The Bryston 3B³ features both balanced XLR and unbalanced RCA inputs, offering flexibility for various audio sources.