I have posted this in the past and got like a 50/50 response, half say on, half say off. My main HT system, I only use Friday-Sunday. I used to leave everything on even though I wasn’t using it for 4 days. I have since switched my thinking and now I shut everything off (subs, amp, processor, streamer) using the power switch when I go to bed on Sunday night. Then, on Thursday night, I switch everything back on but don’t play anything until Friday AM. Then I let the system run on low volume throughout the day on Friday while I’m at work. That way it’s super warmed up and ready to go. Seems to work great.
I just figured leaving everything on for 4 days while not in use just doesn’t make sense. My amp is an Earthquake Cinenove Grande 5 channel…