Do you leave your SS amp on all the time?

Sean, thanks for the post. You make some valid points. I may try leaving it on. Ventilation is not a problem. My system sits on Lovan Sovereign AVR rack, which is 43" wide. The Threshold shares the top shelf with my turntable. So there is about 4+ feet of clearance between it and the ceiling. I always wondered what could cause those amp heatsinks to discolor so much. I thought it was being left on all the time or being run beyond their capabilities. I hadn't thought of poor ventilation, although that very well could have caused it.

Regards,
John

Stand by. Why pay the extra dough?

I keep mine on 24/7.

I put the NAD components into "standby" and the Plinius just stays on (per Plinius' recommendation and my listening pleasure). If I turn off the NAD stuff completely for a couple of days, they warm up in a few hours. However, the Plinius takes a frikkin' week! I'll never turn it off, unless I absolutely must (e.g., storm)!

Jeff Rowland told me that leaving my model 10 on uses as much energy as a 70 watt bulb. He didn't beleive it would effect the sound quality, though.