I am currently using a PS Audio P5 to feed my system. In the past, I owned a P500, and two PPPs. The P5 was a real game changer compared to PS's earlier offerings. I could not connect my power amp. to the PPP with our shutting down the regenerator...it simply wasn't a robust enough design to handle the amp. With the P5, I have my amplifier plugged in with all sources and preamp and phono stage, I am only using 34% of its capacity. Great dynamics and crystal clean sound. I know some folks don't like regenerators, but my gear is being fed .1%THD power! I'm good with that!