Yes the outlet matters. And the outlet box, and cover. Also the wire coming into the outlet box, and how it gets there. One straight continuous run sounds better than wired outlet to outlet with lights and stuff all on the same circuit like most homes.
Also the power cord, how it gets to the amp or whatever. If it goes across the floor then it will sound better raised up off the floor. Oh gosh this is getting tiresome, hopefully by now you get the point, everything really makes a difference. Why the heck you think my system looks like this? https://systems.audiogon.com/systems/8367
Also the power cord, how it gets to the amp or whatever. If it goes across the floor then it will sound better raised up off the floor. Oh gosh this is getting tiresome, hopefully by now you get the point, everything really makes a difference. Why the heck you think my system looks like this? https://systems.audiogon.com/systems/8367