Bryston 4B SST2 Pro Stereo Amplifier

Next Generation of 4B Power...
The Bryston 4B is something of a legend. As our 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 SST2, 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 theater installation, or state-of-the-art stereo system, the 4B SST2 continues as the number one choice.

The 4B SST2 is a pure dual mono design and offers 300 watts per channel into 8 Ohms, 500 watts into 4 Ohms and over 1000 watts available in bridged mono mode.


Modular design and separate power supplies for each channel ensure cross-talk is essentially nonexistent, and provide precise and focused soundstaging. Components mount directly into glass-epoxy circuit boards, eliminating variations in signal travel and wire interaction. Reviewers agree: sound quality is improved to a stunning degree, realizing a higher, and far more consistent standard of musical accuracy across a line of amplifiers than ever before possible.

Model advancements in the SST2 Series include:

    * New power supply transformer design
    * New push on/off power switch
    * New chassis design
    * New Soft-Start Circuit
    * New Balanced input stage
    * New Power Supply board
    * Bridging mode performance improvement
    * Reduced point to point wiring
    * Reduced circuit board count
    * Redesinged output chokes


Bryston 4B SST2 Pro Stereo Amplifier Features :

    * New cosmetics
    * New Push on/off power switch
    * 300 watts per channel 8 ohms,
      500 watts 4 ohms,
      1000 watts bridged 8 ohms
    * New SST 2 output devices
    * Increased power supply capacitance
      - 30,000 MFD per channel
    * Selectable Balanced or Unbalanced inputs
    * Lower noise and distortion
    * Two New Independent ultra-low-noise power transformers
    * New computer modeled heat-sink design
    * Quick connect remote 12 volt trigger
    * Selectable gain - 1 Volt or 2 Volt
    * Available in Silver or black finish with 19 or 17 inch faceplate
    * 20 Year Warranty



Bryston 4B SST2 Pro Stereo Amplifier Specifications :

Power Output :
  300 watts per channel. 8 ohms
  500 watts per channel 4 ohms
  1000 watts, bridged. 8 ohms

Distortion IM or THD+noise
  <0.005% from 20Hz to 20kHz at 150 watts into 8W
  <0.007% from 20Hz to 20kHz at 250 watts into 4W

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

Slew Rate : Greater than 60 volts per microsecond
Power bandwidth : <1 Hz to over 100 kHz
Damping factor : Over 500 at 20Hz. ref. 8 ohms
Warranty : 20 years parts labor, shipping one way

Dimensions :
19" Version with handles :
 48.3 x 13.3 x 43.8cm - 19" x 5.25" x 17.25"
 mounted rack depth 28cm - 11"
17" Version :
 43.2 x 13.3 x 40.1cm - 17" x 5.25" x 15.75"

Weight : 50 lbs, 22 kg

Finish : Black or Silver