I wonder if tube rolling those 6AK5 and 5651 tubes has any effects! Mine is over 10 years old and I have changed every other tubes but still keeping that 2 on the amp! Wonder how long can they last!
Send Vlad an email, but I suspect you could use some fresh tubes. And my recollection was, those weren't necessarily expensive. The only one I roll in mine (ML2) is, like the Syntax, the 12ax7.
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