Series one 45

[Stringsy]

Hey guys recently my amp has just starting squeaking, as if there were some kind of mobile interference, but it's not that.
I checked the back of the amp, the PRE amp is pretty hot and the noise seems to be coming from there, do you think it's a valve problem!?

Thanks

[6strings]

Seems like tubes. Had same problem few months ago, posted here too. Thought it was preamp section making that horrible noise but turned out that power tubes were the problem.

[Collin045]

It was the same with mine, clean channel with much less volume than the gain channel. I already had the HT-5RH and the HT-5R 1x12 combo, which have plenty of gain for me, so I returned the Metal version. I think that the clean channel on both the regular and Metal versions are about the same volume as each other, but the gain channel on the Metal is just so much louder that it seems that the clean channel is weak by comparison.