I just keep mine powered up all the time. I don't use the standby feature or power button. It makes my speakers pop when toggling those, so I prefer to not experience that several times a day. I use my speakers daily and nearly constantly though.

Ah ok. But what about the other channels? Center, subwoofer, surround left and surround right?

Thanks Yethal. By channel what do you mean? Do you mean 2 of them are for the speaker outputs and 2 of them are for the headphone outputs? Or something else?

Hey Yethal, do you know what the 4 different op amps do? I was thinking of replacing them with the Sparkos set, but wasn't too happy with the price of 4 of them together. Can I swap out less than 4 depending on what speakers I typically use? Is each op amp assigned to a speaker channel? Or are...