I have my first real "big rig", a Mesa 400+ thru a Bergantino NV425. I love it!!! This past weekend myself, two drummers, and 2 gu@!ar playin' buddies of mine went out to one of the guys very secluded home and played all night and all day... all weekend... VERY LOUD!!! Over many beers and booze. We had a blast. It got me wondering if it would be possible for me to blow the speakers in my cab with the Mesa. I got quite a bit of distortion, but it sounded great to my ears, as well as the other guys. But is there some signs I really need to look out for? Thanks.