@jperry
For sure. The PPP fans were significantly louder and the sound was of a higher pitch. The P5 and PPP are completely different units. The P5 is built more robustly than the PPP. I actually had two PPP units. The first PPP suffered a regenerator failure as it could not handle the demands of my power amp. As I mentioned above, the P5 is cruising at 34% of maximum with my SACD player, SACD outboard power supply, preamp, phono preamp, Quantum Symphony Pro and my SmC Audio Revision A+ of a McCormack DNA-1 Deluxe.
My PPP had 1.7% input distortion, .7% out. The P5 is 1.7% in .1% out.