PrimaLuna tube amp issue

Did you reach out to the person you bought the amp from?  Does it have any known issues?

Either send it in for a repair or find a local tech  does not sound like a major issue

Hello all, thanks for all the feedback. I reached out to previous owner and he suggested, as a number of you have, to touch base with upscale audio. I have made contact and they are walking me through a series of steps via email to close in on the problem. At this point, we are at the thorough check of tube point and will likely progress from there. If all these tests fail, I suspect he may have me take a look inside to see if there is any obvious damage. 

If anything significant pops up may return to this tread. Thanks again...

That is a heavy well built amp.  I owned one. 

The sound you describe hearing right before the issue in the one channel happened was a soft pop, which is making me curious to hear what Upscale says.  I had a couple of small issues like this and they were fantastic.  The problems were solved with no stress on me.  

Keep us posted as to what unfolds.