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BRYSTON
OWNER’S MANUAL
Instructions For Bryston
SST Series Amplifiers
Models 3B SST and 4B SST
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3B SST and 4B SST Series Amplifiers Table of Contents General Introduction Page 1 Description Instalation and Ventilation Rear Panel Input Settings/Connections Page 2 Setting Input Selector Switch Balance Input Connector Configuration Setting Input Sensitivity Output Binding Posts Page 3 Front Panel Description Page 4 LED Indicators (Power-up Sequence) LED Indicators (Operating Conditions) Power Control Panel Page 5 Master Curcuit -Breaker AC Power Input Local/Auto Switch Local/External Switch
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3B SST and 4B SST Series Amplifiers Introduction Thank you for choosing an SST SERIES Stereo 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 3B SST The 3B SST is a dual mono design 2 x 150W per channel audio power amplifier. Each channel selects a balanced or sin- gle ended input. Each channel se
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3B SST and 4B SST Series Amplifiers Rear Panel Input / Output Connections 1/4” PHONE PLUG 5 1 4 2 6 3 XLR TYPE RCA PLUG Fig 1 1. Input Select Switch. Each SST channel gives the user the option of switching between either balanced input or single ended input. 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. 3. Single Ended Input. ( Un-balanced input ) ( Imp. 50k ) This input connecto
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5/8” 5/16” 3B SST and 4B SST Series Amplifiers 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. The Output binding posts provide three different interconnect options. Combinations may be used when bi-wiring. See fig- ure 2 below. Cables should be kept as short as practical and should never be t
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3B SST and 4B SST Series Amplifiers 2 2 1 Front Panel 1. 'SST POWER' switch The front panel label 'SST POWER', is a touch sensitive membrane switch used to apply or remove a/c line power to the soft start circuitry. Push firmly the center of the switch until the power-up sequence begins. Push again and the amplifier will power-down. ( Note: the rear circuit breaker must be on for the amplifier to power-up) 2. LED Indicators Each SST channel has a LED indicator to monitor the following conditions
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3B SST and 4B SST Series Amplifiers Power Control 1. Master circuit - breaker. The SST amplifier uses a magnetic-trip circuit breaker (1) to protect the amplifier. This switch should be ‘OFF’ during installation. When switched ‘OFF’ all A/C power is removed from the amplifier, including standby power. The circuit breaker is not the power switch and should be switched and left ‘ON’ after the installation is complete.Use the ‘SST POWER” switch or an external control voltage to Power-up or Power-d
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3B SST and 4B SST Series Amplifiers 8
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3B SST and 4B SST Series Amplifiers Typical Band-pass Noise 3BSST Typical Band-pass Noise 4BSST Power supply artifacts are all below -95 dBu Power supply artifacts are all below -95 dBu balanced input with 23dB (2v) gain shown balanced input with 23dB (2v) gain shown dBu: dB relative to a reference of 0.7746 Volts dBu: dB relative to a reference of 0.7746 Volts Typical THD+N Harmonic Content 3BSST Typical THD+N Harmonic Content 4BSST The harmonic content of the 4BSST is all even order. The harmo
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3B SST and 4B SST Series Amplifiers Typical Frequency Response 3BSST Typical Frequency Response 4BSST 8 ohm 150w 8 ohm 300w 4 ohm 250w 4 ohm 500w Typical Phase Response 3BSST Typical Phase Response 4BSST 4 ohm 400w 4 ohm 400w 8 ohm 250w 8 ohm 250w 10
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3B SST and 4B SST Series Amplifiers Typical THD+N Sweep 3BSST Typical THD+N Sweep 4BSST Graph shows that distortion is Graph shows that distortion is essentially unaffected by load. essentially unaffected by load. 2v balanced input shown. 2v balanced input shown. 4 ohm 500w 4 ohm 250w 8 ohm 150w 8 ohm 3000w Typical IMD Sweep 3BSST Typical IMD Sweep 4BSST 4 ohm 250w 4 ohm 500w 8 ohm 150w 8 ohm 300w 11
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3B SST and 4B SST Series Amplifiers Damping Factor 3BSST AND 4BSST 8 ohm reference Typical Crosstalk 3BSST AND 4BSST Channel 2 reading with channels 1 driven to rated output into 8 ohms Channel 2 reading with channels 1 driven to rated output into 4 ohms 12
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3B SST and 4B SST Series Amplifiers 3BSST Technical Specifications 4BSST Power Output Power Output 300 watts per channel into 8 ohms 150 watts per channel into 8 ohms 500 watts per channel into 4 ohms 250 watts per channel into 4 ohms Gain Select and Sensitivity Gain Select and Sensitivity 29dB - 1.8Vin = 300W @ 8 Ohms - (1V Position) 29dB - 1.3Vin = 150W @ 8 Ohms - (1V Position) 23dB - 3.6Vin = 300W @ 8 Ohms - (2V Position) 23dB - 2.6Vin = 150W @ 8 Ohms - (2V Positi
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OPERATING BRYSTON 3B & 4B AMPLIFIERS IN BRIDGED MODE “Bridged mode” refers to the combining or “bridging” of two amplifier channels into a single ampli- fier channel. The primary reason for doing this is to achieve a single amplifier channel with much greater output power. When two 3B channels or two 4B channels are bridged, the combined single channel will output up to 2 times the voltage and therefore, theoretically, 4 times the power of a single non-bridged channel. In practice, the actual
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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. In the event of a defect or malfunction, Bryston will remedy the problem by repair or replacement, as we deem necessary, to r
