Clairvoyant
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- Jun 5, 2012
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Hi everyone,
I have a Mark IVb which I have owned for almost a year. Since I bought it, I have replaced all of the power tubes and two of the preamp tubes (V1 and V5). Over the last two weeks or so, I have noticed that the amp was losing high end and a little bit of clarity. It is still losing high end, but ver the last few days I noticed that it is losing gain as well. Not a lot of gain, but enough to notice. Does anyone have an idea of what it could be? Just in case it helps, the tubes are: 4 Mesa 6L6s, V1: Tung-sol RI, V2:JJ V3: unmarked, V4: JJ, V5: Mullard RI. I play the amp into a Rectifier 4x12. Any help would be greatly appreciated.
Thank you
I have a Mark IVb which I have owned for almost a year. Since I bought it, I have replaced all of the power tubes and two of the preamp tubes (V1 and V5). Over the last two weeks or so, I have noticed that the amp was losing high end and a little bit of clarity. It is still losing high end, but ver the last few days I noticed that it is losing gain as well. Not a lot of gain, but enough to notice. Does anyone have an idea of what it could be? Just in case it helps, the tubes are: 4 Mesa 6L6s, V1: Tung-sol RI, V2:JJ V3: unmarked, V4: JJ, V5: Mullard RI. I play the amp into a Rectifier 4x12. Any help would be greatly appreciated.
Thank you