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I would be interested, thanks!

I will split these up if anyone is interested. Trades? I'd like a Mark V 35 combo or head. Cheers, Mike

Still available..... trades?

Hey All, I have for sales a rack mount system consisting of the Mesa Boogie Studio Preamp and a Stereo 20:20 Power Amp. These are rack in a 4RU Case leaving 1 slot open (used to have a tuner in it). Studio Preamp is in great condition. everything works as it should. Reverb is strong. Some of...

Thanks so much!

Could someone repost a schematic and photos of where the caps are? I just got a 20/20 and would like to mod it. Cheers, Mike

Still available. Make me a good offer!

I have for sale my Mesa Boogie Mark V:35 Head. This is a used amp. It has been in my home studio for the past year. It is a 2017 model (I believe). New power tubes installed in November of 2021 Please see pictures provided and the notes below for condition and wear. It will be packed with...

Hey All, I have for sale my Mesa Boogie Quad Preamp. Rare to find these nowadays. This was made in 1989. Great condition, quiet, everything works as it should. I have a custom-made foot-switch for the Quad. This is a much better options than the clunky FU-2A. This allows switching of individual...

All fixed up, working and ready for sale. It's the end of an era for me I guess the Studio Preamp gone and now the Quad! Cheers, Mike

O.K. - I think I've found the issue. The 120k resistors are 'hiding' under the big orange 0.1uF Caps. Sure enough, one of the resistors is open. I'm not sure if I can get an iron in there and I sure don't want to try and pull the whole board out. I may try and piggyback the open resistor with...

I measured wrong. There is ~260V on Pin 1 as there should be but only 34V on Pin 6. I cannot seem to find where the 120k resistors are. My eyes are pretty bad even with the photo blown up.

So I tried going directly into the Return B plug and got nothing from of the Main B out. Zero, not even the scratchiness that I had before. Plugged into the Return A and the Main A output had good signal. That would seem to narrow down the problem area in the B side of V22. But..... I checked...

Thanks, I'll give that a try. Cheers, Mike

Hey All, I've been cleaning my Quad Preamp up for sale and I've noticed an issue. The Main Out Channel 2 output is scratchy / Intermittent. I've never actually used this output (always used CH1) and just happen to find it by accident. As I turn up the CH2 volume it sounds scratchy up to...

Hey All, Does anyone have a wiring diagram for an FU-2A Footswitch? I would like to recreate one. Maybe I should say... Can I build one using individual footswitches? I recently acquired a Quad Preamp with no footswitch. Cheers, Mike

Great, thanks so much!

Hey All, I've bought a used Mark V 35. The previous owner had 'decorated' the front panel. I am trying to return it the original. I have found the grill cloth but does anyone know where I can get the piping used around the front panel? Cheers, Mike

[size=150]Hey All, I have for sale my late 90's Mark IV. This is the Rev A. version. Works great, no issues. It was recently given a go-over by Shane at TubeSonics. Tubes are fairly new. The amp comes with a road case, footswitch and the original documentation. Even the 'cheat sheet' chart...

To All, I found the answer, right in the owners manual strangely enough! Turn unused channel volume to zero and Presence control to 10. Cheers, Mike