I use Shunyata Z-1 cryoed outlets. They grip tight and were around $100 each when I purchased them. All the wall outlets in my living room are by Shunyata and I use 2 dedicated 20 amp lines for the system. All my power conditioners and power cords with one exception (Acrolink for the Esoteric player) use Various Shunyata cords.
Good outlet for amplifiers
I have a circuit in my listening room for my amplifiers and it uses a dedicated ground. Right now I have two duplex outlets connected - and I use the primary outlet (first on the run) for the amps (reserve secondary for subwoofers if needed). I would like to install better quality outlets for this - two duplex, set up for a dedicated ground. I could see spending $100-$200 per duplex, if that gets me something decent. I want it to grip the plugs well. Recommendations?
PS - I'm running two VAC Phi-200 amplifiers (200w tube amps, KT88)