Related Manuals for Decware CSP3
Summary of Contents for Decware CSP3
- Page 1 OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 CSP3 Reference Vacuum Tube Preamplifier PAGE WWW.DECWARE.COM...
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Page 2: Safety Instructions
OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 lightning flash with arrowhead, within The exclamation point within an an equilateral triangle, is intended to equilateral triangle is intended to alert the user to the presence of unin- alert the user to the presence of stalled “dangerous voltage”... -
Page 3: Table Of Contents
OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 Thank You Table of Contents _______________________________ _______________________________ By purchasing this preamplifier you are Safety Instructions helping to preserve the art of finely crafted audio products with absolute Thank You world class reference fidelity. -
Page 4: Unpacking
OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 Unpacking Your Preamp should be carefully inspected upon receipt for any damages that may have occurred in shipping. If you detect any issues please contact us right away. -
Page 5: What's What
OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 What’s what Here is a top view of the CSP3 layout. POWER CORD 3A FUSE RIGHT INPUT B RIGHT INPUT A MONO OUTPUT LEFT INPUT A... -
Page 6: Connections
If you notice the pins are bent they must be straightened prior to inserting the tube into the socket. A simple way to accomplish this is to have a tube pin straightener available from Decware. tube pin straightening tool from Decware PAGE WWW.DECWARE.COM... -
Page 7: Input Connections
Your CSP3 contains a silver input selector switch and the switch box shown above is also using silver switching and silver / Teflon internal wiring. This component is called the ZSB and available on the Decware web site. -
Page 8: Installing Tubes
5U4 or a variation of it, such as the 274B from Valve Art. The CSP3 uses a 47uf 500V capacitor in the first section of its power supply, so many 1940s rectifiers and remakes are not compatible since they want to see less than 10uf 500V capacitors. -
Page 9: Biasing Your Tubes
The other two 9 pin tubes can be substituted with 6N1P, 6N5P, 6922, 6N11 Biasing Your Tubes There is no biasing to adjust on the CSP3 preamp. All the tubes are cathode biased which makes them naturally self adjusting and always in the optimal range. -
Page 10: Operation
It is now time to connect your first source component to one of the input pairs on the CSP3. You can do this while the CSP3 and your amplifier are on and at idle, but be sure you haven’t turned any of the controls on the CSP3 up yet. -
Page 11: Clipping
If your headphones get too loud too fast, you can turn down the input level controls. The CSP3 can be built with either a pair of 1/4 inch headphone jacks, or a pair of 4 pin XLR jacks, or one of each. Also it can be built with dual 3 pin XLR jacks. Your headphone cables are what determine what kind of jacks you need. -
Page 12: Voicing
If your amplifier has a gain control, the same can be done between the output controls of the CSP3 and the gain control of the amplifier. -
Page 13: Maintenance
There is no real maintenance on the CSP3 other than to keep it and the jacks clean. The best tool for dusting your CSP3 is a 2 inch paint brush. If you have to really clean it, remove the tubes and spray some windex (window cleaner) on a cloth rag and wipe the surfaces clean. -
Page 14: Specifications
OPERATION MANUAL MODEL : CSP3 - CLASSIC STEREO PREAMP REV 1 MAR 2018 Specifications Weight 16 lbs Dimensions 8.5” H x 7.25” W x 14.75” D Circuit Triode Class A OTL Input Voltage Adjustable Noise/Hum -80dB Input Impedance 100k Ohms Output Impedance <600 Ohms...