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Any technological minded folks around? I've been fighting a redplating EL-34 in the outer socket of my Mark IVb. It began only redplating when I would switch modes (either pentode/ triode, or Class A/ Simulclass), but now it redplates any time the Amp is on. I have tried swapping the outside...

Assuming you were going to pair the options below with a 2:90, would you rather have: A) A quad preamp, Formula preamp, and a GCX type device for routing and switching the preamps and power amp, or B) a TriAxis? And for what reason would you choose one or the other? The quad can be MIDI or...

Hi guys, Has anyone gotten to compare a Recto, Uber, SLO, or 5150 together? I'm currently on the hunt for a new amp, and am in the heavy research phase. I'm trying to determine if a switch in speakers can take me to the tone I'm thinking of, or if a new amp through my Mesa Traditional 412 can...

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Just poking around the Mesa website and reread their guide for using Mesa power amps in mono. Historically, as I recall, the advice was to turn the unused channel's volume all the way down, and the presence all the way up to prevent oscillations. It appears that is now changed to have both...

Hi guys, I have a lot of rack stuff listed for sale on reverb. Please go to my reverb shop for pictures. Prices listed here are for grailtone transactions. My reverb URL is https://reverb.com/shop/coopers-boutique A list of what is for sale, or what may soon be for sale: TC Electronics...

If you've read my posts before in this forum, and other threads around the interwebs, you'll see that I have previously owned a TriAxis, and sold it after a number of months and complained about different aspects of it and praising the quad preamp and mark IV in its place. NOT SO FAST. I...

Imbuya short Mark Headshell in Mesa Boogie box No longer for sale

Hi everyone, I have several items for sale. Clearing out old gear to make room for new. All prices include paypal but not shipping. Lower 48 only, please Digitech GFX01 w/ power cable $100 Includes power cable and dual mono 1/4” male to single stereo 3.5mm female plug to attach headphones...

Hi everyone, About a year ago, I bought a headshell off of eBay for a short chassis mark series (I have a short mark IV). After getting everything installed, I noticed the fan that came with it bumps into one of the power tubes. Just recently I swapped the mark IV back into my rack kit...

Hi everyone, I'm posting this here because I feel it is universal to most Mesa amps, but my specific post is about a mark iv. I have read that unplugging the reverb from the quad preamp can result in damaging the reverb transformer, and I was wondering if the same applies to the mark IV. I...

Hey guys, I have a Quad preamp, a 290 poweramp (for now) and a roadster. I am digging the tones from the quad into the roadster, so much in fact that it has pushed me over the edge to sell my 290. Drilling down to the bedrock of my question, in your opinion, how important is Simulclass to JP's...

Hi everyone, I am selling my blue light 2:Ninety. I bought it 4 months ago (late February) and have replaced some screws it was missing before. It has rack rash, and the cover of the light is missing, but the bulb is still in there and lights up when powered on. The top is also slightly bent...

Hi everyone, I am debating modifying my quad preamp to accept an IEC power cable instead of the attached one. If it is done well, would it lower the value of the preamp, and if so, how significant, in your opinion? Thanks for any and all responses

Does anyone have any good places to get screws to hold the "lids" on their rack gear? My 2:90 is missing practically all of them, and my quad has two I would like to replace. FWIW I went to my local hardware store, and they had a screw with the proper threading, but it was silver and a few...

Hi everyone, this is my first time asking a "what would you do" type question instead of a technical question. What I have: Quad pre, 2:Ninety, GC Pro. What I want: A MIDI controlled second rig separate from my roadster, with basically any effect I want, clean cleans, mid gain crunch, and Mark...

Up for sale is my 20/20. I bought it last April to pair with my quad, but it does not have enough headroom for my needs. It functions excellently and sounds great. Cosmetically it has some rack rash, scratches, and scrapes on the top and bottom (see pictures below). Also, the knobs have some...

Hey guys, I have been doing a lot of research and used the search function and everything. My question is: everyone says the best poweramp for the TA is the 2:90, but why is this? I know it's simulclass, and is most like a traditional mark's power section and all that. Would it still be the...

Here is a tone from my quad. I used a line out from the effects loop into GarageBand and used LA Convolver for an impulse of a 2:90 with a traditional 412 cab(I think) Can anyone point me in the direction of some mark V tones that are similar to this? Can a MV get this clear...

No longer for sale