Bryston 4B SST2 Power Amplifier

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Boxed Weight: 25 Kg
Boxed Dimensions:
Delivery Restrictions: UK Only
On Demonstration?: Yes - Call us to arrange

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Product Information

The Bryston 4B is something of a legend. As Bryston's most popular model, it has attained international status as an amplifier suitable for the finest and most sophisticated sound systems. In its latest incarnation, the 4B SST, it is a dual mono design delivering a massive 300 Watts per channel into 8 Ohms. Whatever the venue, be it recording studio, concert stage, broadcast facility, home theatre installation, or state-of-the-art stereo system, the 4B SST continues as the number one choice.

Bryston 4B SST2 Power Amplifier Specifications:

Power Output

300 watts per channel into 8 ohms
500 watts per channel into 4 ohms

Gain Select and Sesitivity

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 shortened - 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

48.3 x 13.3 x 43.8cm - 19" x 5.25" x 17.25"

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	2100W
Max. Heat Dissipation 4 ohms	3750 Btu/Hr
Bridged @ 900W @ 8 ohms	2040W
Max. Heat Dissipation 8 ohms	3890 Btu/Hr