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Description générale :
Le Classé CP700 est un préampli HDG dont la réputation n'est plus à faire.
Sa finition est exemplaire, avec écran tactile et facade en aluminium brossé d'une seule pièce.
Doté d'une alimentation séparée, et de conception entièrement
symétrique, il brille par son exceptionnelle transparence, sa neutralité, et son ouverture. Il possède quatre entrées RCA, deux entrées
symétriques (qui peuvent chacune être déclarée en "bypass" pour utiliser un préampli HC), et deux sorties symétriques, permettant aisément
de biamplifier.
The new CP-700 is the most advanced and fl exible preamplifi er in the Classé Delta series range. It utilizes cutting-edge balanced circuit topologies and power supplies to set a performance benchmark for preamplifi ers in this category. HIGHLIGHTS OF THE CP-700 DESIGN INCLUDE: External power supply chassis generates seven separate power sources from three transformers. A large135VA transformer with fi ve separate secondary windings provides maximum isolation for the plus and minus voltage sources for each channel, as well as the plus voltage used aboard the CP-700 for control circuitry. Input selection is handled by special shielded, low-voltage relays with gold-plated silver contacts, rated to perform to their specifi cations for over 100 million cycles are ideal for switching low-level audio signals. All unused input signals are disconnected from the chassis, giving the selected source what amounts to its own, dedicated preamp. Single-ended sources are routed through an instrumentation-grade input buffer to generate a truly balanced (or symmetrical) signal. Unlike other single-ended to balanced conversion topologies, both legs of the resulting differential signal share the same path lengths and are truly symmetrical. All signals, once in the balanced mode, are routed through a DC servo to remove any unwanted DC from the source. Coupling the signal in this way eliminates the need for sonically degrading DC blocking caps, while protecting speakers from the possible damage or distortion resulting from passing DC through to the amplifi er. Separate stereo volume controls are used for each channel to maximize stereo separation and allow better rejection of common mode noise and distortion. Four-layer output buffer circuit boards provide optimum signal routing and excellent distribution of power. Six identical circuits per channel make up three discreet, three-stage differential buffer amplifi ers (+ and – paths for each buffer). One is dedicated to the single-ended output. The other two are dedicated to the inverted and non-inverted signals on the balanced outputs. Because they have their own dedicated output buffers, both singleended and balanced output stages may be used simultaneously with absolutely no degradation. Optional phono modules (CPM) plug into the CP-700 motherboard to offer MM/MC phono gain and RIAA equalization. The CP-700 monitors line voltage, frequency, AC phase and ground condition as well as internal temperature. A TFT touchscreen display simplifi es the user interface, reduces display-related noise and allows users the convenience of customization. P R E A M P L I F I E R As with amplifi ers and other audio components, preamp performance ultimately depends on intelligent design choices and careful execution. Throughout the CP-700, parts selection, circuit topologies and layout, and construction techniques contribute to outstanding performance in both the laboratory and the listening room.
SPECIFICATIONS Frequency response Distortion THD+noise Single-ended and balanced output Signal to noise ratio Channel separation Clock Jitter USA & Canada • Classé Audio Inc. • 5070 Francois Cusson • Lachine • Quebec • Canada • H8T 1B3 • Tel +1 514 636 6384 • Fax +1 514 636 1428 WEIGHTS & MEASUREMENTS GROSS Width 17.5” Depth 16.5” Height 4.75” NET Width Depth Height Gross Weight 33lb/15kg Net Weight
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