3BSST 4B SST POWER AMPLIFIER OWNER’S MANUAL UPDATED 2007-01-29
3Bsst & 4Bsst POWER AMPLIFIERS Introduction GENERAL INFORMATION 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 single ended input.
Bsst & 4Bsst POWER 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.
3Bsst & 4Bsst POWER AMPLIFIERS REAR PANEL & INPUT/OUTPUT CONNECTIONS 1/4" Phone Plug JACK 1 2 XLR Jack RCA Plug 4 3 5 6 Figure 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.
3Bsst & 4Bsst POWER 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 figure at right.
3Bsst & 4Bsst POWER AMPLIFIERS OPERATION contd. 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.
3Bsst & 4Bsst POWER AMPLIFIERS 3Bsst TECHNICAL SPECIFICATIONS 4Bsst Power Output 150 watts per channel into 8 ohms 250 watts per channel into 4 ohms Power Output 300 watts per channel into 8 ohms 500 watts per channel into 4 ohms Gain Select and Sensitivity 29dB - 1.3Vin = 150W @ 8 Ohms - (1V Position) 23dB - 2.6Vin = 150W @ 8 Ohms - (2V Position) Input Impedance 50 Kohms single ended 20 Kohms balanced Gain Select and Sensitivity 29dB - 1.8Vin = 300W @ 8 Ohms - (1V Position) 23dB - 3.
IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage “ within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
