View source for Carvin Quad-X Amp

=== Overview ===
[[Image:92 quadxamp-small.jpg]]

There are four channels in the Quad X: Clean 1, Clean 2, Crunch ,and Sustain.  There are a total of nine 12AX7 preamp tubes used. 


[[Image:Carvin 12AX7Cascade.gif]]

It's called "[http://digilander.libero.it/paeng/cascade_stages.htm Tube Cascade&trade;]" - The Quad X uses 9 tubes.

Each 12AX7 tube has two sides: Clean channels 1 & 2 use a single tube stage - each taking a side from tube #1 (V1).  Channel 3 uses 2 tubes which is 5 tube stages (V2, V3, and half of V4).  Channel 4 uses 11 tube stages - the other half of V4 plus 5 more tubes (V5, V6, V7, V8 and V9).

==== Front/Rear Panel details====
[[Image:Quad-X-PanelDiagrams.gif|600px|Front and Rear Panel diagrams]]

====Foot Switch====
[[Image:Quad-XFS77.gif|600px|foot switch]]



Features include mono or stereo operation, 6 flexible effects loops, a spring reverb tank, a first-rate adjustable noise gate, cabinet-voicing simulator circuitry for direct-in, and a 5-band graphic EQ in addition to each channel's dedicated active EQ knobs.

The FS-77 footswitch controls the preamp's channel selection and reverb, effects loop and graphic EQ for each channel.

Below is a shot of the inside of the Quad-X.  The tubes designated V1-V9 and go from left to right.  

[[Image:Quadguts.jpg]]


[[Media:CarvinQuadx.pdf|Carvin Quad X-Amp Tube Guitar Preamp User's Guide]]

Here's an advertisement from 1992.

[[Image:92 quadxamp-large.jpg|Quad-X magazine ad]]

[[Image:Carvin93_quadxamp-large.jpg]]

=== Videos ===
* https://www.youtube.com/watch?v=zj18EY8yqH8
* https://www.youtube.com/watch?v=6O8CViUNKpc

=== Documentation ===
[[Media:CarvinQuadx.pdf|Carvin Quad-X Guitar Preamp Users Guide]] pdf file
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[[Category:Electric Guitar]]