Amp ac cable connection

I prefer directly into wall, but easy enough to try both

like the OP said, he prefers comfort to excitement for music listening...

and also psinyc, it's not just the outlet you use, but all the outlets on that line, and really all in the home...Charles Hansen of Ayre, commented here a bunch of years ago, that one of the best things you could do for your music system was to unplug your TV and surround sound system...mine is on a different line, and I didn't want it to help because it's a nuisance to do, but it made a nice improvement...