x4000 paired w/sierra 2 - turn off or keep on.

Got my Sierra 2s yesterday. Was sick so i was a little out of it and peeled one of the magnets off the tweeter and started to panic but if mindblowing sound was the result - il take it.

I had a question for any users who use a Denon x4000 with their ascend speakers. I have always been of the mindset of keeping electronics on. With such nice speakers and a bit psychological - i was curious: keep denon on or off when not in use?

I always turn my Denon 991 off when not in use. I've never had any problems.