I just bought this epiphone amp, bring it home, find out it's one of the humming ones. That's OK, I'm not worried about the hum, I already heard about that but the 2006 models haven't arrived in australia yet so apparently they all hum here.

The problem is when I hit strings hard, even at a low volume, it crackles. Is it just faulty, or am I doing something wrong?
I think it's probably the tubes...
The stock tubes are said to be REALLY bad.
And btw, there are some simple mods you can do to fix the hum
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.