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3B SST and 4B SST Series AmplifiersTable of ContentsGeneral IntroductionPage 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 DescriptionPage 4
LED Indicators (Power-up Sequence)
LED Indicators (Operating Conditions)
Power Control PanelPage 5
Master Curcuit -Breaker
AC Power Input
Local/Auto Switch
Local/External Switch
Block DiagramsPage 8
Typical Performance GraphsPage 9-12
Technical SpecificationsPage 13
Important Warranty InformationBack Cover
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3B SST and 4B SST Series Amplifiers1 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 Brystons most important resource, and your opinion is very much appreciated.
Description 3B SST
The 3B SSTis a dual mono design 2 x 150W per channel audio power amplifier. Each channel selects a balanced or sin-
gle ended input. Each channel selects a gain of 29dB(1v) or 23dB(2v). The 3B SST includes soft start power control cir-
cuitry to eliminate high inrush currents when A/C power is applied. The power up or turn-on of the 3B SST may be acti-
vated by remote control voltage.
Description 4B SST
The 4B SSTis a dual mono design 2 x 300W per channel audio power amplifier. Each channel selects a balanced or sin-
gle ended input. Each channel selects a gain of 29dB(1v) or 23dB(2v). The 4B SST includes soft start power control cir-
cuitry to eliminate high inrush currents when A/C power is applied. The power up or turn-on of the 4B SST may be acti-
vated by remote control voltage.
Warranty ( see back page for details )
Shipping Box & Packing Material
Please keep the original shipping box and all packing material. This will ensure the amplifier is protected in future trans-
port. In the unlikely event you have a problem and must return it for service you mustuse the proper packing material.
Ship the amplifier only in the original packing material, as the unit is not insurable by carriers otherwise.
Installation ( see rack mounting section if applicable )
Ventilation. The most important installation consideration is ventilation. All SST amplifiers are convection cooled.
Unrestricted air-flow across its heat sinks is a must. For this reason do not install anything directly above it. Allow 3.5 (2u)
to 5 (3u) inches of space above and to the sides of this amplifier. Do not install directly above other heat generating equip-
ment. Should your instillation conditions be constricted, then additional forced air-cooling may be necessary. Bryston can
provide an optional fan package if required. Any SST channels thermally shutting down during operation indicates insuffi-
cient air flow, and a remedy must be found for cooling the amplifier. Provide a minimum 6 space to the rear of the ampli-
fier for ventilation and dressing cables to and from the amplifier.
Never operate the amplifier in a vertical position.
Wiring the SST amplifier ( also see rear panel description )
Speaker wiresshould be as short as practical. Use quality wire, and if runs are more than 3 meters use at least 12 gage
wire. The speaker binding posts will accept wire up to 3 gage in size. Bryston will custom build cables for your application.
A/C power
Before plugging in the power cord be sure your SST amplifier is specified for the correct a/c voltagefor your locality. The
voltage is listed on the label found at the upper right of the rear panel. The circuit feeding the 4B SST should be sufficient
so as not to cause the circuit breaker to trip (15 amp min). Note: the 4B SST when operated with both channels delivering
maximum power into 4 ohm loads, will consume all the available power in a normal household circuit, therefore a dedi-
cated electrical circuit may be necessary with this situation. Never lift the safety ground to the amplifier nor remove the
ground pin from the plug.
Power line conditionerswill notimprove the SST amplifier performance, in fact most of the time they restrict the flow
of current to the amplifier, reducing performance at higher output levels
