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The C-2820 incorporates AAVA technology developed for the C-3800 and features strictly selected materials and parts.
AAVA is fundamentally different from the digital signal processing
approach involving A/D and D/A conversion. The volume control operates
purely in the analog domain. Using AAVA to change the volume means
that the high S/N ratio and low distortion of the amplifier remain
totally unaffected. Frequency response and sound quality do not suffer
at any listening level. There are no left/right tracking differences or
crosstalk, and no other performance related degradations. The
conventional concept of volume control in analog preamplifiers is well
and truly a thing of the past. Another benefit of AAVA is the fact that
it consists entirely of highly reliable semiconductor parts, so that
performance and sound quality will remain undiminished for many years
The C-2820 features separate power supplies for left and right
channel, each with a dedicated high-efficiency toroidal power
transformer and filtering capacitors. A total of 16 units for the line
input, balanced input, AAVA, and other circuit stages are arranged
separately for left and right channels on a mother board. This full
mono construction eliminates any risk of unwanted electrical or
mechanical interaction between the two stereo channels.
The printed circuit boards are an important element of a
preamplifier both regarding electrical performance as well as sound
quality. In the C-2820, these are made from glass cloth fluorocarbon
resin with low dielectric constant and minimum loss. The result is a
product that ushers in a new era of preamplifier excellence.
AAVA Volume Control for high performance and outstanding sound
Separate high-efficiency toroidal power transformers for left and right channels
Selectable preamp gain
Fully modular construction with separate left/right units for each amplifier stage
Logic-controlled relays for shortest signal paths
Independent phase selection for each input position
Printed circuit boards made from glass cloth fluorocarbon resin
Elegant cabinet with natural wood finish
Specificatii Preamplificator Accuphase C-2820
Music is an oasis that refreshes us in our journey of life.
Music can be soothing, exciting, exhilarating. It can move our hearts and enrich our lives, which is the goal we at Accuphase seek through audio technology.
This was the idea behind the slogan "Enrich Life through Technology" which originally brought together the group of very highly skilled audio experts who conceived and today produce the successful Accuphase line of audio equipment. It is the guiding principle behind all Accuphase components whose high grade can be considered extravagant. Just as there are exquisite musical instruments that are especially highly prized, we believe that the same applies to audio components. This belief forms the basis of our design concept. It is the reason why we strive to build extra value into each of our units so that they will display fully the merits of hand construction.
The name ACCUPHASE was adapted by taking the prefix ACCU from the word "accurate", and combining it with PHASE which is a most important factor in audio technology. We feel it is a very fitting brand name to describe our products that fully portray this and other important characteristics, which penetrate the innermost depth of audio technology. Our endless pursuit of quality requires a very high degree of processing which persuades us to avoid the use of mass production systems. Consequently, production volume is limited and Accuphase products are available only at a restricted number of specialized stores.
Accuphase equipment is not subject to the whims of market fashion since they are made, above all, to achieve true high fidelity sound reproduction. This is the foremost reason why our products have enjoyed long-run production.
PDF 1 Preamplificator Accuphase C-2820
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