CarySLP-03usedCary SLP-03 Balanced Stereo Vacuum Tube PreamplifierThis Cary SLP-03 Tube Preamplifier has been fully tested by one of our technicians and is fully functional. Cosmetically it is in 7/10 good condition. The only reason it isn't rated higher is due t...800.00

Cary SLP-03 Balanced Stereo Vacuum Tube Preamplifier

Listing ID: lisa5617 Classified 
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Condition
7/10
Payment methods
Ships fromDouglaston, NY, 11363
Ships toUnited States
Package dimensions18.0" × 9.0" × 22.0" (29.0 lbs.)
Shipping carrierUPS
Shipping cost$66.63
Original accessoriesRemote Control, Box
AverageResearch Pricing

This Cary SLP-03 Tube Preamplifier has been fully tested by one of our technicians and is fully functional. Cosmetically it is in 7/10 good condition. The only reason it isn't rated higher is due to Audiogon's standard of having a perfect front face plate. The only small imperfections happen to be on the face and can be seen in one of the pictures. It came from a good home and was enjoyed by a true music lover in a smoke free environment. Pictured remote is included.

PRODUCT OVERVIEW

The new Cary Audio Design SLP 03 preamplifier is a blend of digital computer technology and pure vacuum tube, analog discrete circuitry. The SLP 03 consists of actually four (4) analog, 16 dB, and line gain stages. Two separate gain stages are used for each of the two channels. One gain stage amplifies the positive phase (+180 degree) and the other gain stage amplifies the negative phase (-180 degree). Two stages for each channel equal the four active line circuits. All audio path signals are amplified through 12AU7 vacuum tubes in a class A zero feedback circuit.

The front panel display is a Noritake vacuum florescent display with a blue lens in front. The display receives and displays the critical control functions from a Motorola CPU incorporated inside the Cary Audio SLP 03 preamplifier. The Motorola processor is the controller for all functions of the preamplifier.

Back to the analog side of things, there are a total of eight (8) fully regulated power supplies in the SLP 03 preamplifier. Separate supplies for each channel’s analog circuit along with multiple power supplies for the Alphanumeric, Noritake display, along with dual supplies for the Motorola processor. To power the fully regulated power supplies the SLP 03 has two individual R-Core shielded power transformers. Dual power transformers, along with separate left and right supplies, make the SLP 03 a true dual mono preamplifier. In fact, the channel separation is in excess of 80 dB. This amount of channel independence is a major engineering design breakthrough in vacuum tune designs.

A word about cinema-bypass is in order. We have discovered with previous Cary Audio preamplifier designs, when incorporating the cinema bypass that on occasion the user would forget that the system surround processor inputting to the preamp could be a very high level. Thus when the preamplifier power switch is placed in the off position, the default would be a feed through of the processor signal and could blast the left and right channel loudspeakers. In the SLP 03 the cinema-bypass only functions when the SLP 03 is powered up with the volume gain setting set at number 47 on the display. The reading of 47 is unity gain. It might be noted in the SLP 03 one could have a single ended (RCA) processor input and through the SLP 03 have a balanced output to the left and right channel amplifiers.

Operating the dual 12AU7 vacuum tubes in a current source configuration, true balanced output is achieved with both single-ended (RCA) inputs or the balanced (XLR) input selection.

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