I recently posted a dilema with a new Ampeg B1RE head making alot of noise from the cooling fan (church gig) and it's was way too loud so I returned the amp to Musicians Friend with tears in my eyes becasue the amp has a gorgeous sound. I bought a closeout SWR 350+ sight unseen for $350 bucks on Ebay (new head) and I got it yesterday. The head has a switch to manually control the cooing fan, preamp DL out volume and dual speakon's out and it is really quiet. I got it at 4ish pm and played for like 6 straight hours! I have to say......WoW what a sweet head!! The "aural Enhancer" is very nice and the Sub doubler (which I assumed would be cheez) is actually usable!! I still plan on getting a SVT 3 Pro in the next year but this amp totally rocks!!!