Bryston 28B SST2 Pro Mono Amplifier

Our Mission - To design a state of the art 1000 watt power amplifier that does not compromise performance at 1/10th power.

A significant part of the design criteria for the 28B SST 2 was to develop a very powerful amplifier that would drive any speaker on the planet but maintain an ideal power curve at 1 watt as well as at 1000 watts and every power level in between. Most amplifiers exhibit a power curve whereby the best noise floor, drive capability and distortion is maintained from about 1/3 power and up.

The Bryston 28B-SST 2 Mono amplifier maintains its power curve right from the first watt. This results in a BIG POWERFUL amplifier that sounds incredibly detailed and musical at very low levels and maintains that same sophistication and drive capability with even the most difficult, inefficient speakers, large or small.

The Bryston 28B-SST 2 is a fully balanced output amplifier (BRIDGED), which has reduced THD and IMD to unprecedented low values, (typically 0.001% or less), for a new degree of transparency, musicality and ease of listening. Superbly low noise floor, typically below – 115dB, yields an inky black silence between notes for hauntingly realistic reproduction. Tremendous power reserves give the 28B-SST 2 virtually perfect freedom from overload on any type of speaker or music, bringing the performance and realism directly into your listening environment.

The 28B’s ability to resolve subtle musical details has to be heard to be believed – it truly sets a new standard : Mission accomplished.



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 28B SST2 Pro Mono Amplifier Features :

    * New cosmetics
    * New Push on/off power switch
    * 1000 watts into 8 ohms
    * Selectable input - balanced (xlr) or single ended (rca)
    * Selectable gain - 1v = 29db or 2v = 23dB
    * External power on off control - 12v trigger
    * New micro controlled soft start
    * New power switch
    * All A/C is totally shielded from Audio circuits
    * Maintains exceptionally low noise and distortion from very low to very high power demands
    * 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
    * Available in Silver or black finish with 19 or 17 inch faceplate
    * 20 Year Warranty



Bryston 28B SST2 Pro Mono Amplifier Specifications :

Power Output :
  1000 watts into 8 ohms


Distortion
  <0.005% 20Hz to 20kHz at 1000 watts into 8 Ohms
  <0.007% 20Hz to 20kHz at 900 watts into 4 Ohms

Noise Measured with input shortened - 20Hz to 20kHz
  >110dB below rated output 29dB gain (-75dBu)
  >113dB below rated output 23dB gain (-76dBu)

Slew Rate : Greater than 120 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 :
 48.3 x 20.5 x 52.1 cm - 19" x 8.05" x 20.525"

Weight : 92 lbs, 42 kg

Finish : Black or Silver