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CP-800   Stereo Preamp Processor

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The CP-800 Stereo Preamp/Processor combines the functionality of a conventional analog preamplifier with that of a multi-input DAC having digital processing features. The single-box approach eliminates unnecessary chassis, circuitry and cables, which reduces cost, shortens the signal path and preserves signal quality. The CP-800’s processing capabilities allow performance-enhancing features like parametric EQ, tone control and bass management to be accomplished in the digital domain, preserving the resolution of signals in a way not possible with conventional analog-based systems.

The CP-800 was updated in late 2013 to include 192 kHz capability for USB as well as Ethernet connectivity for IP control and streaming DLNA sources up to 192 kHz from a network. Apple’s AirPlay is also supported. A Classé App, available free of charge from the Apple App store allows control of the CP-800 from an iOS device like an iPad, iPhone or iPod touch.

This new preamp/processor architecture is supported by numerous proprietary Classé technologies. The highest performance is achieved via the CP-800’s USB inputs. Asynchronous techniques are used for both computer-based sources (rear panel USB Device connector) and Apple® portable devices (front panel USB Host connector). A technique we call Single-Clock-Substrate extends the advantages of our Asynchronous USB solution to all digital sources, lowering noise and reducing digital jitter to the lowest possible levels. The result is a breathtakingly direct and immediate sound—a crystal clear view into the soundstage—as if you were in the recording studio with your amplifiers plugged into the mixing board.

An entirely new design employs Zero Volt Switching in a Switch Mode Power Supply with Power Factor Correction to deliver performance and value on a scale never before offered in a high-end preamplifier.

Details about this and other CP-800 technologies are available in the CP-800 White Paper. A more comprehensive description of its many performance-enhancing features is available in the CP-800 Brochure. A quick overview and specifications can be found in the CP-800 Data Sheet.

All specifications are accurate at the time of printing. Classé reserves the right to make improvements without notice.



Frequency response

8 Hz - 200 kHz < 1 dB,
stereo analog bypass
8 Hz - 20kHz < 0.5 dB,
all other sources

Channel Matching
(Left to Right)

better than 0.05 dB

Distortion (THD+noise)

0.0005%, digital source/bypassed analog source .002%, processed analog source

Maximum input level

2 Vrms (DSP), 4.5Vrms (bypass)

Maximum input level

4 Vrms (DSP), 9 Vrms (bypass)

Maximum output level

9 Vrms

Maximum output level

18 Vrms

Gain Range

-93 dB to +14 dB

Input impedance

50 kΩ (balanced)
100 kΩ (single-ended)

Output impedance
(main output)

300 Ω (balanced)
100 Ω (single-ended)

Signal-to-noise ratio
(ref. 4Vrms input, unweighted)

104 dB, bypassed analog source
101 dB, processed analog source
105 dB, digital source (ref. full-scale input, unweighted)

Channel separation

better than 100 dB

(any input to any output)

better than -130 dB @ 1 kHz

Standby power consumption

<1 W

Rated power consumption


Mains voltage

90-264 V, 50/60 Hz

Overall dimensions

Width: 17.5” (445mm)
Depth: 17.5” (445mm)
(excluding connectors)
Height: 4.78” (121mm)

Net weight

23 lbs (10.43 kg)

Shipping weight

33 lbs (15 kg)

Made for:


iPod touch (4th generation)
iPod touch (3rd generation)
iPod touch (2nd generation)
iPod touch (1st generation)
iPod classic

iPod nano (6th generation)
iPod nano (5th generation)
iPod nano (4th generation)
iPod nano (3rd generation)
iPod nano (2nd generation)

Made for:


iPhone 4
iPhone 3G

iPhone 3GS

Made for iPad



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