Bryston - 3B³ - Stereo Power Amplifier

The 3B³ is Bryston’s versatile high-performance stereo amplifier, delivering the speed, control, and transparency of the Cubed Series platform in a more compact and system-friendly form factor. Built around Bryston’s patented Salomie input stage circuitry, the 3B³ combines excellent detail retrieval with the effortless musicality and reliability the brand is known for.

What makes the 3B³ especially appealing is its balance of refinement and drive. It delivers tight, controlled bass, open midrange clarity, and stable imaging while maintaining a relaxed and natural tonal character that works beautifully across a wide range of loudspeakers. The fully balanced architecture and convection-cooled chassis also contribute to exceptionally low noise and long-term dependability.

With 200 watts per channel into 8 ohms and up to 300 watts per channel into 4 ohms, the 3B³ offers more than enough authority for serious two-channel systems while preserving the smooth, unforced presentation that makes long listening sessions enjoyable.

Available in Silver or Black finishes.

FEATURES

• High Performance Stereo Power Amplifier
• Bryston Cubed Series Technology
• Patented Salomie Input Stage Circuitry
• Balanced XLR and Single-Ended RCA Inputs
• Switchable Gain Settings (23dB / 29dB)
• Fully Convection Cooled Design
• No Fans or Moving Parts
• Machined and Anodized Aluminum Chassis
• Regulated Power Supplies for Voltage Gain Stages
• SoftStart Microprocessor Controlled Startup Circuit
• DC Trigger Input for Automated Power Control
• Dual Binding Post Pairs
• Ultra Low Noise and Distortion Design
• Designed and Manufactured in Canada
• Legendary 20 Year Bryston Warranty

SPECIFICATIONS

• Amplifier Type: Stereo Power Amplifier
• Class of Operation: Class AB
• Power Output: 200W per Channel @ 8Ω / 300W per Channel @ 4Ω
• THD + N: <0.005% (20Hz–20kHz @ 200W, 8Ω)
• Frequency Response: <1Hz – 100kHz (-3dB)
• Noise:
  • RCA: -117dB
  • XLR: -119dB
• Input Impedance:
  • Unbalanced: 7.5kΩ
  • Balanced: 5kΩ / Leg
• Gain Settings: 23dB / 29dB Selectable
• Slew Rate: >60V/µS
• Damping Factor: >300 @ 20Hz (8Ω)
• Inputs: Balanced XLR / Single-Ended RCA
• Speaker Outputs: Dual Binding Posts
• Cooling System: Fully Convection Cooled
• Standby Power Consumption: <500mW
• Dimensions: 17” or 19”W x 5.25”H x 14.25”D
• Weight: 42 lbs / 19 kg
• Faceplate Options: Silver or Black
• Manufacturing: Designed and Manufactured in Canada