hiss

Hi all, I'm new to this forum because of the MT15 which I received just yesterday. First of all: unbelievably great sounds. I love the the cleans and also the high gain sounds. So much fuller and bigger than what I've heard over the last month's even at room-level. (Been through Mesa, Diezel...

I have a 2012 Dual Channel H with a couple noise issues and am wondering what might be causing them. There's a hum with the Reverb, turned down it's barely audible but gets louder as I turn it up. Could this be a tube issue? There's also what I would call an above average amount of hum and a...