At my old job we ran playback equipment on a dedicated 20 amp feed using an isolated ground and power that is filtered through a bank of batteries to remove ripple prior to being rectified back into AC. Clean power is critical to good sound. No arguement. We did an interesting experiment using pink noise and analysis software to see if there was any change in measurement when changing just the electrical ends on the amp cord and receptacle. Proving me wrong, a good, clean connection does make an measurable, audible difference. It's so small any ambient change such as room temperature or humidity would negate it, but it is there. If you're worried about power spend the money on a good conditioner and buy whatever ends make the best match to your gear. FWIW, if you want to swap both male and female, Hubbel hospital grade male to female did make a measurable difference. I personally run an isolated ground dedicated cicuit at home using Leviton ends everywhere. Best $200 ever spent on my system.
