Never operate the amplifier in a vertical position

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 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 SST is 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 must use 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 wires should 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 voltage for 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 conditioners will not improve 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

3B SST, 4B SST specifications

The Bryston 4B SST and 3B SST power amplifiers are renowned in the audio industry for their exceptional performance and reliable build quality. Designed for both audiophile and professional applications, these amplifiers bring out the finest detail in music while delivering high power and low distortion.

One of the main features of the Bryston 4B SST is its power output capability. It can deliver up to 300 watts per channel into 8 ohms, making it an ideal choice for driving demanding speakers with ease. The 3B SST, while smaller, still offers impressive performance with 100 watts per channel into 8 ohms. This versatility means both amplifiers can accommodate a variety of audio setups, whether in a home theater or a high-fidelity stereo system.

The SST series incorporates Bryston’s proprietary amplifier technology known as “Squared” which allows for class A performance with an overall class AB operation. This design minimizes distortion and provides a warm, natural sound. Alongside this, the amplifiers feature a highly efficient, low-noise toroidal power transformer that contributes to their impressive transient response, allowing music to play with precision.

Another standout characteristic is the build quality. Both the 4B SST and 3B SST are constructed using a sturdy 17-inch faceplate made from aluminum, designed to withstand the rigors of both studio and home environments. The amplifiers also feature a uniquely designed heat-sink system that keeps temperatures in check during heavy operations, ensuring optimal performance without overheating.

Bryston amplifiers also boast a long lifespan, backed by a 20-year warranty on their products, which speaks volumes about their reliability and customer confidence. They include fully balanced input circuitry, allowing for low noise pickup and signal integrity over long cable runs.

Furthermore, the 4B SST and 3B SST are equipped with user-friendly features like RCA and XLR connections for flexible integration into a range of audio systems. With their transparent sound reproduction, high power output, and robust construction, the Bryston 4B SST and 3B SST amplifiers continue to be the preferred choice among audio enthusiasts and professionals alike. Their enduring legacy is rooted in their commitment to superior sound quality and long-lasting performance.