I recently purchased a B&K Ref 7270 power amp. I have it plugged into a monster hts2600 surge protector/line conitioner. I leave my amp turned on all the time and it runs a little warm even when not in use. Is this normal? Is this bad for the amp? Can this cause dammage? I've read several posts on this forum where people suggested good ventilation... can someone please suggest a good ventilation system and/or fan. Something that won't be too loud. Thanks!