Bryston 9B SST2 Power Amplifier
Overdrive:
The Bryston 9B SST is a hand-crafted, modular, single-chassis 5-channel power amplifier delivering 140 watts per channel at 8 Ohms, and 200 watts at 4 Ohms. Each modular channel contains all the electronic circuitry connections and independent power supply, necessary to deliver the best possible sonic quality. The chassis simply supplies AC and five power LED’s on the front panel indicating each channel’s functional status, (green for power-on, red for overdrive).
Key Features:
- Membrane Power Switch
- Soft start circuit on power up
- Multiple filter capacitance per channel
- Selectable inputs for balanced or single ended (RCA) connectors
- Polarity Switch (0 or 180 degrees) on each channel (6B & 9B only)
- Remote 12 Volt power trigger input with delayed output feature
- Selectable gain settings
- Optional 17″ Faceplate (no handles) or 19 inch rack mount (with handles) available.
- Optional Silver or Black Faceplate Available
Speficaitions
Power Output
- 140 watts into 8 ohms
- 200 watts into 4 ohms
Gain Select and Sensitivity
- 29dB – 1.1Vin = 140W @ 8 Ohms -(1V Position)
- 23dB – 2.2Vin = 140W @ 8 Ohms – (2V Position)
- 17dB – 4.4Vin = 140W @ 8 Ohms – (4V Position)
Input Impedance
- 50Kohms Single ended
- 20Kohms balanced
Distortion IM or THD+noise
- < 0.005% 20Hz to 20kHz at 120 watts into8 Ohms
Noise Measured with input shortened – 20Hz to 20kHz
- >110dB below rated output 29dB gain (-73dBu)
- >113dB below rated output 23dB gain (-76dBu)
- >116dB below rated output 17dB gain (-79dBu)
Slew Rate >60 volts per microsecond
Power Bandwidth
Damping Factor Over 500 at 20 Hz, ref. 8 ohms
Dimensions
- Rack Mount Version 48.3 x 13.3 x 48.3cm – 19″ x 5.25″ x 19″ with handles – mounted rack depth – 43.2cm – 17″
- 17″ Version 43.2 X 13.3 X 44.5 17″ X 5.25″ X 17.5″
Weight approx. 34 kg – 76 lbs
Power Consumption & Heat Load
- single channel 140W @ 8 ohms: 242 Watts
- 5 channels @ 140W @ 8 ohms: 1397 Watts
- Max. Heat Dissipation 8 ohms: 2720Btu/Hr.
- single channel 200W @ 4 ohms: 422 Watts
- 5 channels @ 200W @ 4 ohms: 2295 Watts
- Max. Heat Dissipation 4 ohms: 4420Btu/Hr.
- At Idle: 192 Watts