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PerForMAnce WIthout COMPROMiSE
DISCRETE CLASS-A ANALOG STAGE
Getting the Digital side of the equation correct is only
the start. Once the signal leaves the DAC it is buffered
and increased in strength by operational amplifiers. In
the Bryston BCD-1 CD Player these are constructed
from discrete devices (individual transistors, resistors, and
capacitors) instead of the commonly used integrated circuits.
The use of discrete devices allows the design of a circuit
that exactly matches the needs of the DAC. The use of
integrated circuits always involves compromises since they
are designed as general-purpose devices. Discrete devices
also allow for more powerful outputs from operational
amplifiers since the heat from the output driver transistors
is separated from other devices. In an integrated circuit op
amp this heat can affect the rest of the circuitry since it is
all on one chip.
Discrete devices also allow specific matching of important
characteristics such as input and output impedances based
on the specific in-circuit requirements. Discrete operational
amplifiers can also be designed to more closely match their
power source leading to additional reduced distortion and
noise. Discrete devices can be tested very closely to meet
specific tolerances and can be matched against each other
when a desired performance design is critical. Circuits can
be and are designed to require closely matched devices
for optimum performance. Integrated circuits have large
numbers of components on one chip and it is not practical
to do more than high-level sorting of device characteristics.
Bryston does sorting and grading with its DAC chips but
does so to a much finer level with the discrete devices,
which leads to superior sound quality.
HAND ASSEMBLED WITH CARE
Bryston hand assembles and individually tests each and
every product we manufacture. We exclusively use only the
finest components in our products, such as 1% metal-film
resistors, polystyrene capacitors, and hand selected and
matched transistors, in order to reduce noise and distortion
to the absolute minimum. Bryston applies techniques and
employs custom materials in our everyday construction
of electronic equipment that are more typically utilized
by military and aerospace industries. Our traditional
adherence to the use of proprietary parts, sophisticated
construction, and refined testing techniques, guarantees
that your Bryston CD Player will perform superbly, without
any problems, for many, many years. It also prevents any
unit-to-unit variance which inevitably is the result of any
mass produced product.
PERFORMANCE WITHOUT COMPROMISE
With today’s increased clarity and dynamic range in
recordings you need equipment that not only equals but
surpasses the parameters of the most demanding material
available. The Bryston BCD-1 CD Player is without peer
in meeting this performance challenge.
Bryston Ltd. P.O. Box 2170, 677 Neal Drive, Peterborough,
Ontario Canada K9J 7Y4 1-800-632-8217 bryston.ca