HT-40 Drive Channel Volume & EQ Issues

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Posts: 2
Joined: Mon May 09, 2016 9:20 pm

Mon Jul 08, 2019 2:47 pm

Hi everyone,

I've been experiencing a strange issue on the drive channel of my HT-40. There are intermittent drops in total volume on the drive channel, which can be resolved temporarily when I play around with the bass control eq knob (e.g. push it in, turn it back and forth, etc). In addition, the bass control doesn't always work (i.e. the bass doesn't increase when I turn the knob from 0 to 10). Again, these are both intermittent issues that appear to be related.

I noticed that the bass knob is a bit wiggly, so I will tighten the nut that holds the pot in place. But I'm wondering, would tightening the nut resolve these issues, or is this the sign of a failing pot? I'd love to hear your thoughts/suggestions before I open the amp up and start to poke around. I'd rather not go through the process of desoldering the bass pot to test--and potentially messing other things up--if it's not necessary.


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