9B-ST vs 3B-ST
The 3B-ST's signal-to-noise is 106 dB against the 9B-ST's 110 dB. Both share power @ 8ω (120W), power @ 4ω (200W), and damping factor (>500).
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersMultichannel AmplifiersDiscontinued
About the 9B-ST
The Bryston 9B-ST is a legendary five-channel power amplifier renowned for its exceptional build quality and sonic performance. It features a modular design with each channel having its own complete power supply, including a 0.25 kVA toroidal transformer and dual 15,000 µF power supply capacitors. The amplifier is designed for very high fidelity at modest power levels and is conservatively rated, often delivering more power than specified for demanding applications. Each of the five channels can be independently configured with balanced XLR or unbalanced RCA inputs, a three-position input sensitivity switch, and polarity control. The 9B-ST is built to professional standards with a rigid reinforced-steel chassis and modular plug-in channels that can be individually serviced. It includes a 20-year warranty and is backed by rigorous quality control testing including component testing, post-assembly testing, and a 100-hour burn-in session with recorded data sheets.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 120W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Damping Factor
- >500
Analog Output
Analog signal output specifications
- THD
- 0.010%
- SNR
- 110 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 425 × 131.25 × 425 mm (W × H × D)
- Weight
- 33.8 kg (75 lbs)
Key Specifications
Power: 120W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions