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Update... 8 months in and I'm now on speaker number three for this amp. The stock V30 didn't excite me initially and I also wanted some weight relief so I changed it for Celestion V-type. After a while I realized the V-type wasn't the speaker for me. The amp has a lot bass on tap and I found...

Hi Mike, I used the zendesk request form https://mesaboogie.zendesk.com/hc/en-us/requests/new What's up with the customer's amp?

All settings *except* clean, which suggests a preamp issue. That means tubes V2 (which is the input tube on these amps) or V1 (which comes after the tone stack but before the master volume), or something else. Looking at the schematic (non-expert disclaimer) I there is only a small section that...

Yes, 12AX7 in V5, and all the tubes have been changed and swapped around etc.

The reverb tank is correct (9AB2A1B, MESA part number 499122) and correctly wired.

Hi guys! Thanks for the welcome. Yes, it's Kev from the EBMM forum. I have a troubleshooting request in with Mesa and they responded impressively quickly. They sent more recent 2010 revision of the Express schematics and they'll discuss my issues with engineers on the floor and get back to me...

Well hello to all. This is my 1st post! I just got a good deal on a used Express 5:25 1x12 in what looks like British Tan Bronco. Photo at the end of the post. Wonderful sounds and I'm really enjoying exploring everything it can do. I have three questions I have not yet been able to find an...