Bryston

Description

Bryston 3BST Power Amplifier

Short Description

The Bryston 3BST is a rugged, high-performance stereo power amplifier delivering clean Class-AB power with ultra-low distortion and professional reliability — ideal for serious audiophiles and custom audio systems.

Built by Bryston Ltd. in Canada, the 3BST embodies decades of meticulous engineering and legendary reliability. Its robust construction, low-noise performance, and musical clarity make it a favorite among music lovers and system builders alike. Whether driving demanding speakers in a critical listening room or powering a high-end home theater setup, the 3BST delivers effortless dynamics and authoritative control across the audio spectrum. With a design that stands the test of time, this amplifier not only elevates your sound but offers long-term value — a true investment for anyone seeking refined performance and rock-solid dependability. 

Technical Description

General Type

• Solid-state stereo Class-AB2 power amplifier. 

Power Output

• 120 W per channel into 8 Ω (both channels driven). 
• 200 W per channel into 4 Ω. 
• 400 W bridged/mono into 8 Ω. 

Distortion & Noise

• Very low THD (≈0.007 % at rated power, 20 Hz–20 kHz). 
• Signal-to-Noise Ratio: ~106 dB (ref. rated output). 

Frequency Response & Slew

• Wide-range, full-bandwidth response (essentially flat in the audio band). 
• Fast slew rate (>60 V/µs). 

Damping & Control

• Damping factor: >500 at 20 Hz into 8 Ω (tight speaker control). 

Inputs

• Balanced XLR and unbalanced RCA inputs. 
• Sensitivity ~1.0 V for rated 8 Ω output. 

Impedance

• Input impedance: ~50 kΩ unbalanced; ~20 kΩ balanced. 

Build & Cooling

• Dual separate power supplies for each channel. 
• Convection cooling with robust aluminum chassis. 

Dimensions & Weight

• 19″ rackable width, compact depth. 
• Approx. 22 lb (10 kg). 

Features

• Stereo or bridged mono configuration. 
• Clip protection with channel-specific LED indicators.