I have tested the earlier PS Audio Designs and they have always been current limiting in a profound way. Perhaps the roof has been upped a bit with their new "Premier" design. But with their 1500W rating it is probably current limiting. And probably happens audioably before the 1500W is reached. This is my experience with their previous offerings. Now for DACs preamps and DVDs then there is no problem running them on a current limiting conditioner.

In my system with my hardware I have found that Shunyatas Hydra 8 is the conditioner that I can truly put 1.5KW worth of amps on and not break a sweat.

For Amps you usually drive them straight from the wall as there are few conditioners that are truly non-current limiting.

DSP8000SE, DSP7200SEHC, DSP5200SE sides, DSP7200SE rears, 861v8, 210, Sim2 Ultranero 4, Stewart Cinecurve 2.35:1, XEIT CM-5E Anamorphic lens, Dune HD Duo Cinema 8K and Wireworld Platinum 48G HDMI -> UHD722 -> Shunyata Omega Ethernet. Shunyata/Furutech power-cables/filters. SR Master Fuse@861v8. Uptone Etherregen with 10MHz OCXO clock.