I've got a B&K 7270 amp running 4 channels (2 mains, 2 surrounds don't have a center speaker yet). I was watching the NIN live DVD today at extremely high volumes, the highest i've used since getting the amp a few months ago. after a little while it seemed like i smelled something burning and checking the amp i discovered that it was extremely hot...to hot to touch. Currently I have it in a entertainment center with the front and back open and about 8 inches of clearance above the amp, but enclosed on the sides. I have been thinking about getting a rack from studiotech which would open the sides, but i think only leave a few inches clearance at most above the amp. So my first question is do you think the open sided rack would help dissapate heat better than having more cleance above? And secondly...is there something wrong with my system? Should i not be playing it this loudly? I believe it's calibrated to around reference and i'm using an Onkyo TX-SV828 as a pre/pro. I was listening around 3-6 db over reference. Just hoping to get some info on whether i need better ventilation, if there's a problem with my setup, or if i'm just insane for wanting to listen to it so loudly in the first place. Thanks for any help.