I'm a lucky bastard and I've got my dream amp: an Ampeg SVT-VR. Problem is, the cooling fan started making a rubbing sound. I took it down to my local repair guy, who replaced the fan. Problem is, the one he replaced was not factory spec, and is very, very loud and way too powerful. . . it sounds like a dust buster inside my amp head. To make matters more fun, Ampeg says the fans are back ordered 2-3 months(!) It seems like the fan is a commodity I can order myself from an electronics parts store (such as http://tinyurl.com/2pz77q). Besides the size (120mm x 25mm), does anyone know the specs of the fan used in the Ampeg SVT-VR? Specifically, I'm looking for air flow (CFM), speed (RPM), noise (dBA), power (W). Any help greatly appreciated!