Power conditioner

Audience. The box actually has very high quality parts in it and is just fine plugging your high powered amp into. Provides great transparency with no grain. Zero roll off on top end. FWIW. 

I've decided to sell my Synergistic Powercell 10 mkII as I am going with isolated circuits for the audio system.  Not sure what I may use at the box, but I want the extra box out of my room, lol.  

@ctsooner -- please hold off on selling your Powercell until after you have had the circuits installed and have a chance to listen with/without. The two are not mutually exclusive and I would consider both dedicated lines and suitable power conditioning as a must. I say this having used balanced power (EquiTech) and now a Torus based system for my main dedicated lines, and then using a variety of different manufacturers conditioners in addition -- all to the benefit

Ultimately we listen to manipulated power. That said, you might want to let your very high quality power transformers do the job of handing off the power they were engineered  to pass on to the rest of the circuitry in your fine gear.