8B-ST

About the 8B-ST

The Bryston 8B-ST is a 4-channel solid-state power amplifier from Bryston's ST series, designed for high-performance music and home theater systems. In its standard configuration it delivers 120 watts per channel into 8 ohms in 4-channel mode, and can be configured as a high-power 2-channel amplifier by bridging the channels to provide 400 watts per channel into 8 ohms. It also supports a mixed 3-channel mode with one bridged 400 W channel plus two 120 W channels into 8 ohms for flexible system layouts such as LCR home theater or bi-amping. The 8B-ST uses fully discrete Class AB circuitry with low distortion and wide bandwidth and is valued for its clean, dynamic presentation and strong control over loudspeakers. It provides both balanced XLR and unbalanced RCA inputs, rear-panel mode switches for 4/3/2-channel operation, and professional-grade binding posts. Typical published specs list a damping factor greater than 500 and input sensitivities of approximately 1 V unbalanced and 2 V balanced for full power. Known for its reliability and long service life, the 8B-ST is a versatile workhorse amplifier suitable for stereo, multi-channel, or bi-amp configurations.