BRYSTON OWNER’S MANUAL Instructions For Bryston SST Series Amplifiers Model 9BSST-THX
9BSST THX FIVE CHANNEL POWER AMPLIFIER Table of Contents General Introduction Instalation and Ventilation Page 1 Rear Panel Input Settings/Connections Setting Input Selector Switch Balance Input Connector Configuration Setting Polarity Setting Input Sensitivity Page 2 Output Binding Posts and Polarity Page 3 Front Panel Description LED Indicators (Power-up Sequence) LED Indicators (Operating Conditions) Page 4 Power Control Panel Master Curcuit -Breaker AC Power Input Local/Auto Switch Local/Extern
9BSST THX FIVE CHANNEL POWER AMPLIFIER Introduction Thank you for choosing the 9BSST Five Channel Power Amplifier. Bryston welcomes any suggestions you may have, or comments regarding the operation of your amplifier. We consider you, our customer, to be Bryston’s most important resource, and your opinion is very much appreciated. Description The 9BSST is a modular design 5 x 120 Watts per channel audio power amplifier. Each channel selects a balanced or single ended input.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Rear Panel Input / Output Connections 1. Input Select Switch. Each 9BSST channel gives the user the option of switching between either balanced input or single ended input. 2 PUSH 2. Balanced Input connector. ( Imp. 20k ) This input connector accepts standard ‘XLR’ or 1/4” TRS . Use quality, 100% shielded cables with gold plated connectors. ‘XLR’ type 4 5 ‘TRS’ type 1 ‘RCA’ type 3 3. Single Ended Input. ( Un-balanced input ) ( Imp.
9BSST THX FIVE CHANNEL POWER AMPLIFIER 6. Output binding posts The RED binding post is connected to the amplifier output. Connect to this post the (+) terminal on the loudspeaker. The BLACK binding post is connected to signal ground. Connect to this post the (-) terminal on the loudspeaker. When the polarity switch is set for 0 degrees (normal operation ) the output at the RED binding post is in phase with the input signal.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Front Panel 1. 'SST POWER' switch The front panel label 'ST POWER', is a touch sensitive membrane switch used to apply or remove A/C line power to the 9BSST circuitry. Push firmly the center of the switch until the power-up sequence begins. Push again and the 9BSST will power-down. ( Note: the rear circuit breaker must be on for the 9BSST to power-up) 2.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Power Control Panel . Master circuit - breaker. The 9BSST uses a magnetic-trip circuit breaker (1) to protect the amplifier. This switch should be ‘OFF’ when installing the 9BSST. When switched ‘OFF’ all A/C power is removed from the amplifier, including standby power. The circuit breaker is not the day to day power switch and should be switched and left ‘ON’ after the installation is complete.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Rack Mounting Instructions The 9BSST 19” version may be rack mounted with or without the ability to remove the channels. If removal of the channels is desired then the shipping screws securing the channels need to be removed. REMOVE 4 6-32 SCREWS FROM THIS SIDE REMOVE ALL 6-32 SCREWS ON THE TOP DO NOT REMOVE SCREWS FROM RACK MOUNT BRACKET REMOVE 3 3-32 SCREWS FROM THIS SIDE Removing the channels makes rack mounting far easier as the chassis will be much lighter.
BSST THX FIVE CHANNEL POWER AMPLIFIER Typical 5.1 Home Theatre Setup Powered Subwoofer RIGHT CENTER LEFT UNBALANCED OUTPUTS RIGHT LEFT SUB CENTER RSURR RSURR SUB LSURR BALANCED OUTPUTS PUSH PUSH PUSH LSURR BRYSTON LTD / LTEE PETERBOROUGH, ONT.
9BSST THX FIVE CHANNEL POWER AMPLIFIER CHANNEL MUTE +/-33Vdc CHANNEL 1 SENSITIVTY AND GAIN SWITCH +/-65Vdc DEDICATED HIGH CURRENT POWER SUPPLY REGULATED LOW VOLTAGE SUPPLY SINGLE ENDED INPUT XLR AND PHONE INPUT INPUT SELECT SWITCH INPUT POLARITY SWITCH INPUT BUFFER AND GAIN STAGE +/-33Vdc POWER AMPLIFIER OUTPUT TEMPERATURE MONITOR CLIPING AND CURCUIT MONITOR LED CHANNEL MUTE +/-33Vdc CHANNEL 2 SENSITIVTY AND GAIN SWITCH +/-65Vdc SOFT START AND LOGIC CONTROL DEDICATED HIGH CURRENT POW
9BSST THX FIVE CHANNEL POWER AMPLIFIER Typical Band-pass Noise Power supply artifacts are all below -95 dBu balanced input with 23dB gain shown dBu: dB relative to a reference of 0.7746 Volts Typical THD+N Harmonic Content The harmonic content of the 9BSST is all even order.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Typical Frequency Response 8 ohm 120w<.01dB 20Khz. 4 ohm 200w<.1dB 20Khz.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Typical THD+N Sweep Graph shows that distortion is essentially unaffected by load. 4v balanced input shown.
9BSST THX FIVE CHANNEL POWER AMPLIFIER Damping Factor 8 ohm reference Typical Crosstalk channel 2 reading with channels 1 & 3 driven to 120w into 8 ohms channel 2 reading with channels 1 & 3 driven to 400w into 4 ohms 12
9BSST THX FIVE CHANNEL POWER AMPLIFIER Technical Specifications Power Output 120 watts per channel into 8 ohms 200 watts per channel into 4 ohms Gain Select and Sensitivity 29dB - 1.1Vin = 120W @ 8 Ohms - (1V Position) 23dB - 2.2Vin = 120W @ 8 Ohms - (2V Position) 17dB - 4.4Vin = 120W @ 8 Ohms - (4V Position) Input Impedance 50 Kohms single ended 20 Kohms balanced Distortion IM or THD+noise < 0.005% 20Hz to 20kHz at 120 watts into 8 ohms, < 0.
BRYSTON 20 -YEAR WARRANTY Bryston products are warranted to be free from manufacturing defects for a minimum of twenty years from the original date of manufacture. This includes parts, labour and return shipping to the first owner and all subsequent owners. Warranty coverage is automatic and commences with the original date of manufacture which is kept on file at Bryston.
