Bryston 3BSST, 4BSST owner manual 3Bsst, Technical Specifications, 4Bsst

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3Bsst & 4Bsst POWER AMPLIFIERS

3Bsst

TECHNICAL SPECIFICATIONS

4Bsst

Power Output

150 watts per channel into 8 ohms

250 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

Distortion IM or THD+noise

<0.005% 20Hz to 20kHz at 150 watts into 8 W

<0.007% 20Hz to 20kHz at 250 watts into 4 W

Noise Measured with input shorted - 20Hz to 20kHz. >110dB below rated output 29dB gain (- 75dBu) >113dB below rated output 23dB gain (- 78dBu)

Slew Rate > 60 volts per microsecond Power Bandwidth < 1 Hz to over 100 kHz Damping Factor Over 500 at 20 Hz, ref. 8 ohms

Dimensions

19” version with handles - L x H x D

48.3 x 13.3 x 32cm - 19” x 5.25” x 12.5“

mounted rack depth - 28cm - 11.0" 17” version

43.2 x 13.3 x 28cm - 17” x 5.25” x 11“

Weight: approx. 18kg - 40 lbs

 

Power Consumption & Heat Load

 

At Idle -

127 Watts

Max. Heat Dissipation -

433 Btu/Hr.

2 channels @ 150W @ 8 ohms -

668 Watts

Max. Heat Dissipation 8 ohms -

1255 Btu/Hr.

2 channels @ 250W @ 4 ohms - 1096 Watts

Max. Heat Dissipation 4 ohms -

2033 Btu/Hr.

Bridged @ 450W @ 8 ohms -

1053 Watts

Max. Heat Dissipation 8 ohms -

2057 Btu/Hr.

Power Output

300 watts per channel into 8 ohms

500 watts per channel into 4 ohms

Gain Select and Sensitivity

29dB - 1.8Vin = 300W @ 8 Ohms - (1V Position) 23dB - 3.6Vin = 300W @ 8 Ohms - (2V Position)

Input Impedance

50 Kohms single ended

20 Kohms balanced

Distortion IM or THD+noise

<0.005% 20Hz to 20kHz at 300 watts into 8 W

<0.007% 20Hz to 20kHz at 500 watts into 4 W

Noise Measured with input shorted - 20Hz to 20kHz. >110dB below rated output 29dB gain (- 75dBu) >113dB below rated output 23dB gain (- 78dBu)

Slew Rate > 60 volts per microsecond Power Bandwidth < 1 Hz to over 100 kHz Damping Factor Over 500 at 20 Hz, ref. 8 ohms

Dimensions L x H x D

19” version with handles -

48.3 x 13.3 x 43.8cm - 19” x 5.25” x 17.25“

mounted rack depth - 40.1cm - 15.75" 17” version

43.2 x 13.3 x 40.1cm - 17” x 5.25” x 15.75“

Weight: approx. 22kg - 50 lbs

 

Power Consumption & Heat Load

 

At Idle -

170 Watts

Max. Heat Dissipation -

580 Btu/Hr.

2 channels @ 300W @ 8 ohms - 1280 Watts Max. Heat Dissipation 8 ohms - 2320 Btu/Hr.

2 channels @ 500W @ 4 ohms - 2100 Watts

Max. Heat Dissipation 4 ohms -

3750 Btu/Hr.

Bridged @ 900W @ 8 ohms -

2040 Watts

Max. Heat Dissipation 8 ohms -

3890 Btu/Hr.

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Contents 3BSST 4BSST Never operate the amplifier in a vertical position 3Bsst & 4Bsst Power AmplifiersThank you for choosing an SST Series Stereo Power Amplifier General InformationFront Panel Rear Panel & INPUT/OUTPUT Connections Operation 3Bsst & 4Bsst Power Amplifiers Output binding postsOperation contd AC power inputPower-Up Local / Auto switch External control voltage power up Local / external switch3Bsst Technical Specifications4Bsst Bryston Limited Warranty Important Safety Instructions

3BSST, 4BSST specifications

The Bryston 4BSST and 3BSST are exceptional power amplifiers that embody the premium quality and performance standards synonymous with the Bryston brand. Renowned for their robust build and superior audio fidelity, these amplifiers are designed for both audiophiles and professionals who demand excellence in sound reproduction.

The Bryston 4BSST is a higher-powered model capable of delivering 300 watts per channel at 8 ohms and easily transitioning to 500 watts per channel at 4 ohms. This amplifier is perfect for driving larger speakers and creating a more dynamic listening experience. The 3BSST, on the other hand, provides a slightly more reserved output of 150 watts per channel at 8 ohms and 250 watts at 4 ohms, making it an excellent choice for smaller systems without compromising on sonic clarity.

One of the key features of both models is the SST (Special Serial Technology) Mosfet output stage, allowing for rapid response times and low distortion rates. This technology ensures that the audio signal remains clean and clear, even at high volumes. The amplifiers employ an innovative parallel push-pull output design, which not only bolsters dynamic range but also enhances the overall soundstage.

In terms of construction, Bryston amplifiers are built to last. The chassis is made from heavy-gauge steel with a baked enamel finish that not only provides a sleek and professional appearance but also contributes to overall durability. Moreover, the 4BSST and 3BSST feature a unique thermal management system that uses extensive heat sinks to maintain optimal operating temperatures, thus ensuring reliability during prolonged use.

Another significant characteristic of both amplifiers is their low noise floor. This trait is particularly important for high-resolution audio systems, as it allows for more subtle details to come through, providing an immersive listening experience. They also include Bryston’s signature 20-year warranty, reflecting the company’s commitment to quality and customer satisfaction.

For connectivity, both models provide balanced XLR and unbalanced RCA inputs, accommodating a variety of audio sources and setups. Their simple, clean interfaces make them user-friendly while still providing the performance flexibility that seasoned audio enthusiasts seek.

In summary, the Bryston 4BSST and 3BSST amplifiers exemplify the pinnacle of audio engineering, showcasing an unmatched blend of power, clarity, and durability. Whether you are setting up a high-end home theater system or a professional studio, these amplifiers are equipped to deliver exceptional sound quality for years to come.