This might be stating the obvious, but are you sure the amp is designed to work with KT150 tubes? Either way, it might be worth trying it with the stock EL34 and see if the problem still exists.
PRIMA LUNA DIALOGUE PREMIUM - 20 minutes and then loud pop and buzzing in 1 channel
Hopefully someone can help.
Amp is virtually new. The amp will operate wonderfully for 20 minutes and then a loud pop , and then buzzing from the right channel. I shut down the amp and then it repeats. I switched some tubes and it is still there. I switched the cables and know for sure it is only one channel, the right one. The buzzing does not increase with the volume increased. .
It is the amp and not the Prima luna preamp. Cables and connections are fine. Pushing Focal Kanta No2's .
Any help would be very much appreciated. I'd rather not send a 68 pound piece of equipment through the mail.
Thanks lot - Craig
Amp is virtually new. The amp will operate wonderfully for 20 minutes and then a loud pop , and then buzzing from the right channel. I shut down the amp and then it repeats. I switched some tubes and it is still there. I switched the cables and know for sure it is only one channel, the right one. The buzzing does not increase with the volume increased. .
It is the amp and not the Prima luna preamp. Cables and connections are fine. Pushing Focal Kanta No2's .
Any help would be very much appreciated. I'd rather not send a 68 pound piece of equipment through the mail.
Thanks lot - Craig