Sorry, current. My Gray was an old model from 2008. The Gray had chokes. Chokes compress dynamics I've been told.
I have a 30A dedicated line connected to my Uber Buss power conditioner with a 30A Neutrik connector.
My UBER Buss does a better job with noise than the Gray. Power Factor Correction of 1 if memory serves me.
Caelin Gabriel of Shunyata advises the whole house surge suppressor at the breaker box, and no suppressor at the equipment rack and Garth Powell of Audioquest feels strongly for the opposite due to potential RF noise.