All I can say is the original PS Audio power plants gave my system that late night listening sense of ease any time I listened. It was night and day (no pun intended) and a regenerator of A/C is the only way to go vs. cleaning up "dirty" A/C power. After owning Tice and others in the past, it was better to use nothing than them. Even though Krell states not to use anything on their amps, I am sorry but the P1200 doesn't restrict anything from my 300S and definitely sounds less solid state and more like tubes to my ears. I never used any footers under mine either until I read on the PS site and that was another noticeable improvement to the Power Plant. I have been using them for 8 years now and will not listen without them.