Matthew Walton
From:
Fort Worth, Texas
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Posted 23 Jan 2017 11:56 pm |
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Hi all. The audio in my Twin Reverb RI has started to "drop off" once my input volume seems to go below a certain threshold. I suspect it's a power tube issue since it happens in both vibe and non-vibe channel with different instruments, but I thought I'd try to get some more knowledgeable and experienced thoughts before I spend money on new tubes.
When I first strum, the note/chord volume slowly decays as expected. But at a certain point, the sound just goes to nothing. If you were to graph the output volume, there would just be a cliff at the end, if that makes sense. If I'm picking softly, you'd almost think there's tremolo enabled.
I haven't used that amp in a while, so I don't know if that makes a difference. I've been using nearly daily since Jan 14 (and sporadically throughout January), and unfortunately it seems to be getting worse with time.
Looking forward to diagnoses!
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1981 MSA "The Universal" Bb6 S-12 9/5 | 2024 Excel Robostar Bb6 S-12 8/5 | 2009 MSA SuperSlide C6 S-12 | Peavey Nashville 112 |
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