Not if you’re staying with the same output tubes. There’s no bias adjustment for pre tubes. Here's hoping it’s that easy (just a tube)!
6505+ problem?
I've had an 6505+ for about 9 months, love it. Recently though Channel 1 has had a popping sound, not real loud. Kinda sounds like when you have a cellphone to close. When I play you can't really hear it and Channel 2 has no such problem. Is this a preamp tube problem or something else? Thanks
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