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TECHNICAL DESCRIPTION
The Classé CDP-1 compact disk player is high quality unit utilizing the latest innovations in
digital audio reproduction. The philosophy behind the CDP-1 is advanced technology for extracting the
maximum musical performance, but also embraces the time proven idea of simplicity, in accordance
with the saying "simpler is better."
No effort has been spared in the development of the CDP-1. The chassis is of exceptionally
thick gauge metal, and has been designed to resist vibration through solid construction and proper
isolation from sources of vibration. The half-inch thick faceplate is a tribute to its construction and
aesthetics.
Inside, main power is provided by a custom high-current 38VA toroidal transformer. The power
supply of the CDP-1 is generously oversized to assure that regardless how much current is drawn, the
circuitry will remain unaffected by any fluctuations. Numerous power supplies are used, to assure the
elimination of interference caused by fluctuations often induced by heavy current draw on shared
supplies. The CDP-1 inherently has a low power consumption, but micro-information is easily
contaminated when traditional power supplies clip due to their inadequate output. This is the general
idea behind the high current, stable supply that powers the CDP-1.
The disk transport itself is the latest Philips CDM12.4 with the L1210 Loader assembly. This
mechanism employs a newly-developed linear tracking laser pickup which is faster, quieter, and longer
lasting that the well received CDM9 Pro mechanism. The isolated suspension system of the CDM12.4's
optical circuitry and disk motor is completely separate from the disk tray, eliminating micro-vibrations
caused by sudden atmospheric pressure changes around the front panel. The CDM12.4 is of broadcast
quality, and its outstanding construction using highly efficient, long life motors assures excellent long-
term reliability. In addition, this compact disk player is designed not to require periodic calibration,
assuring that long-term alignment will always be right on specification.
Jitter, also known as errors in the time domain, is the prime factor in performance degradation,
and Classé has addressed this problem from every perspective. One aspect is the outstanding power
supply described above; another is the exceptional reclocking circuitry. Using a 16.9344 MHz crystal
oscillator to generate the digital output, the final jitter measured at the output is typically so low it can
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