Stone. For feet under the P5, I am using Synergistic Research big MIGs I found on sale some time ago and interestingly, I used them under my Uberbuss power conditioner, not really liking them under my amp at the time...too bright there. I am using some small MIGs under my modded Oppo and like them there too. I have Herbies isocups under the Torii and CSP3 now, but they sounded pretty dead under the P5. You got me, but the MIGs have a more alive sound...better openness and fine detail, but also good body and bass within that more open sound. I would call them a good voicing foot if one needs this sound, they are good at it. I felt a great relief when I tried them under the P5 since I had a hard time getting the open micro detail I need from it. If I had not been into exploring, being a bit veiled and colored for me, it would have gone back. Plugging my DAC and computer into a modded Brickwall that is conditioned by a Shunyata Defender really helped too. They were too effected by the P5 sound but opened right up on this separate circuit.
I compared all my cables, including an AC12 with several hundred hours. The Pangea SE9 had good frequency range and detail, but was too dark/warm for me. It came down to the AC12, a Pi Audio 10 AWG with gold Furutech ends, and new 8 AWG DIY. In the big picture, the AC12 was quite good, but not much comparison between it and the DIY cable I am using now. Sort of mixing the wirewound conductor and ground twisting setup with PSAudio and Pangea conductor number and gauge variety, it has many conductors of different gauges of silver on copper teflon wire and Rhodium ends. I got lucky, but it is really good! I was impressed that I could not hear my cable. It just seemed like unrestricted, uncolored flow of everything in the music. I did hear the AC12, open and deep, but by comparison, I don't know how to describe it...maybe like it had an odd sense of differentiation of frequency areas, at least going into the P5.
I don't know if you caught the following thread, but it segues into numerous power areas including PSAudio, also including my own saga with the P5. There is a description of my cable at post 43.... I think it was about 160-70 for parts, though getting the ends on a deep sale was a big savings.
https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1400749087/30To my amp I am using a Neotech DIY with gold plated ends and Neotech's 11 AWG cable. I watch partsconnexion for sales. I got the old style gold AC and IEC for 20 each like the Rhodiums.
http://www.partsconnexion.com/wire_ac_neotech.htmlIf you search there for Neotech, I think you can find the Rhodium Ends I got, now for 40 each.
I will be interested in your impressions of the P3. If it is like the P5, time and cables are bigtime, and cables a major tuning tool, more so than I have heard into anything else.