I own a SWR 750 amplifier and have a question regarding heat and cases. Because the salesman told me it was the best idea, regarding heat, to install the amp in a 4 unit case I did so (the amp is 3 units tall). But man, ... my fine new amp looks stupid in its case thats to big. I know its silly but it anoys me. So, do you think I could install it in a 3 unit case, that doesnt leave any room over the amp. The amp has a powerfull fan but the problem is that the grill (?) is on top of the amp. But I've seen others using 3 unit cases for a 750 (actually the guy from Spinal Tab!) The manual doesnt say anything about you should use bigger cases. Thanks By the way, my case is a Warwick RockBag, if thats any help, and the smaler one would be one like this too.