Any users out there, who want to talk about this thing? Every time I use this at home, I think it sounds pretty "thin" due to the light material it's buildt with. Been thinking about stuffing some "stuff"inside it, to get a fuller/beefy tone. Then every time I use it in a rehearsal or at a small gig, I'm amazed how good thing thing plays at 40-50% volume. Kick in the compressor, and it actually shakes my trousers. It plays so much better when volume is turned up, than at home where I don't play so loud. Anyone tried to place some kind of foam material inside?