Hello. I own and Ashdown Superfly. I posted a few bits on the superfly a while ago in another forum and have been away for a while since. Having come back I purchased the Superfly 4x8Cab to compliment it to get max power with limited equipment. Anyway, i ran it out last night at a rehearsal and it blew away the drums and guitartist .........for the first hour. After this, it kept clipping - pretty heavily - at what i considered pretty low volume (about 3/4 gain and volume). turning it right doiwn solved the problem, but left me drowned out by everyone else I know these run pretty hot, so i stuck a fan on it to assist it's cooling as soon as I had a problem and 2 mins later, and for the rest of the rehearsal there was no problem with it. Has anyone else experienced this with the head? I play gigs upto and over 3/4 hours on occassion and dont want to have to lug a fan with me everywhere to ensure this doesnt happen! Figured I'd check if anyone had had similar experiences here as I've found Ashdowns customer service to be lame, and in some cases non-existant. I really love this set up, and if anyone can suggest ways to get round it it would be useful. Next time, I'm giving it a lot more clearance from the cab for better ventilation underneath. Cheers!