Accuracy in Performance - Elegance
in Appearance
Bryston ST Series Amplifiers
Bryston has a continuing commitment to design and manufacture
the most accurate and reliable audio product available. We maintain
an extensive research and development division which is constantly
looking for methods to improve the performance, value and reliability
of out amplifiers. The Bryston ST Series of amplifiers is the
direct result of this continuing quest for perfection. These
amplifiers represent a substantial step forward in the art and
science of audio amplification.
The Bryston ST Series amplifiers incorporate
the use of an innovative gain stage topology which yields a
substantially lower noise floor through the use of low-impedance
pathways within the amplifier. This same approach also has strong
advantages in reducing the overall distortion performance. Bryston’s
computer controlled distortion analyzers confirm Inter-modulation
Distortion levels less than 10 parts per million (below 0.0009%)
are typical for this new circuitry. All ST amplifiers use Bryston’s
proprietary Quad-Complementary output section, which improves
linearity to a new standard of accuracy, while virtually eliminating
aggressive higher harmonic distortion products. From input to
output, all the circuitry in the ST series of amps has been
optimized for the most accurate performance possible. Custom
dual torodial power supplies provide precise and focused soundstaging.
The dual power supplies employ multiple filter capacitors per
channel, rather than single pairs of larger filter cans. This
allows improved high frequency response and reduces overall
losses in the supply. Standard features included both balanced
and unbalanced gold plated inputs, a ground lift switch to reduce
those annoying ground loops and a stereo/mono switch for bridging
the outputs if higher power levels are required.
Amplifiers range in power from the 3B ST stereo
unit at 120 watts per channel through the 4B ST stereo amplifier
at 250 watts per channel, to the monstrous 7B ST monaural amplifier
at 500 watts and the multi-channel 120 watt 8B ST. The 3B ST
stereo amplifier at 120 watts per channel provides all the quality
and value of our larger amplifiers but in a package which is
both compact and powerful. Suitable for a wide range of audio/video
systems where sonic accuracy, medium power and long term reliability
is required.
The Bryston 4B is something of a legend among
audio amplifiers. As our most popular amplifier over the years,
it has attained inter-national status as an amplifier suitable
for the finest and most sophisticated sound systems. Whatever
the venue, be it a recording studio, a sound stage, a broadcast
facility, a home theater installation, or a state-of-the-art
stereo system, Bryston has continued to be the number one choice.
A unique feature of the 7B ST is a switch
allowing the output stage to operate in a parallel (current)
or series (voltage) mode. This gives the 7B ST the power to
drive, with breath-taking ease and clarity, speakers which have
been considered “impossible” loads in the past.
With today’s interest in home theater,
media rooms and multi-channel music systems, Bryston’s
8B ST provides switchable operation with four discrete channels
at (120 watts), three channels (one at 400 watts and two at
120 watts) or two channels at (400 watts). This provides you
with an extremely
versatile and flexible amplifier for integrating audio/video
systems requiring multiple channels of amplification.
Although the description of circuit
innovations can indicate the research and commitment we bring
to the design and manufacturing of our audio products, only
in the listening does the result of that dedication become clear.
Bryston’s ST Series amplifiers are capable of doing justice
to the most refined audio/video system, with the subtlest details
of the musical fabric revealed in their original form.
