#1
So for some reason, whenever I activate a pedal in my fx loop, I get big drops on volume on my triple rectifier. If I turn the loop itself on, it's fine, but once I turn a single pedal on, I have a problem.

Anyone experience this before and know what I can do?
#2
Substitute the tube in V4 with a new one.
Name's Luca.

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Clue: amplifiers amplify so don't turn it on if you need quiet.
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#5
Time to take it to a tech.

Have you adjusted the FX loop level knob on the back panel?
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