MA2275 Issue need some advice

JLind...Done everything and every combination including moving the Mac to my other system...doing the same thing, its the left channel of the Mac so heading to the Doctor in the morning for 3 weeks of therapy. What really irritates me is I just bought it from someone on AudiogoN as a 9/10 in perfect mint condition. It was doing this the moment I hooked it up and he is pleading the fifth.

Kbell...thanks for the input about the fuses on the power tube board, the channel with the distortion problem is actually louder than the channel that works well.

G5flier, I would recommend using the augiogon system including feedback and dispute process to get it right with you and the seller. Based on what you have said, the repair should be the responsibility of the seller or you should be able to return it for a full refund. I can see a tube getting damaged during shipping but it doesn't seem like this is your issue.

G looks like your getting pretty good feedback. Nothing I can really add here.

I did reach out to Mc customer service after my tube blew just to ensure I understand my options.

Good Luck.

A big thank you to everyone that replied to the thread, many great ideas! The 2275 is heading to the doctor in the morning.