4B SST3

The Bryston 4B SST³ is a high-performance power amplifier designed around exceptionally low distortion, robust power delivery and long-term reliability. Its carefully engineered circuitry combines an active, extremely low-distortion input buffer with both balanced and single-ended inputs, providing flexible integration into a wide range of high-end audio systems.

Selectable 23dB or 29dB gain allows the amplifier to be matched to different system requirements, while regulated power supplies are provided to all voltage-gain stages. Each channel also has an independent power supply, helping maintain excellent channel separation and consistent performance under demanding conditions.

The 4B SST³ uses a fully aluminium chassis with convection cooling, eliminating the need for fans or other moving parts. This provides silent operation while contributing to the amplifier’s reliability and durability.

For applications requiring substantially greater output, a bridging switch configures the amplifier as a single 900W mono channel.

Features

• Active, extremely low-distortion input buffer
• Balanced and single-ended inputs
• Selectable 23dB / 29dB gain
• Regulated power supplies for all voltage-gain stages
• Independent power supplies for each channel
• Fanless, convection-cooled aluminium chassis
• No moving parts
• Switchable bridged operation up to 900W mono

Options

Available with silver or black faceplates. A choice of 17-inch format without handles or 19-inch format with handles is offered. A black Pro Edition with rack-mount capability is also available.