Members StratKat Posted June 20, 2013 Members Share Posted June 20, 2013 Wondering if anyone out there has gotten more clean headroom by changing speakers (it has 2-30watt celestians stock) Or if there is any simple mod internally that would increase the clean tone. It just dirties up too fast and for dirty blues that's fine. But I do a lot of genres. I love the Mark iii'S IN STOCK CONFIG (70w WITH 200W SPEAKER. ...hate that caps key to pieces!... The larger wattage seems to be the only way ive found so far to get more clean headroom. But I cant afford another amp for quite a while. Link to comment Share on other sites More sharing options...
Members Mr.Grumpy Posted June 20, 2013 Members Share Posted June 20, 2013 This is really a question for the amp forum, or would have been, back in the day. I think you can put a lower-gain preamp tube in the first (V1) socket. It is almost certainly a 12AX7 tube, and you can substitute a lower-gain tube like a 12 AT7 and that will give more clean headroom on the preamp side. You do NOT have to adjust bias for preamp tubes, it's a plug-and-play operation.I would reach out to Mesa or to one of the well-known tube vendors that specialize in guitar amp tubes, they'll know more and be able to make a good recommendation for you. Link to comment Share on other sites More sharing options...
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