I will chime in here. Just completed my "full loom" of HiDiamond, including P4 powercords to monoblocks, preamp and DAC. D8 speaker cables(full range to magnepan MG20's). XLR3 from Preamp to amps, and from DAC to preamp, and AAES Reference from digital player (Bryston) to DAC. The most recent additions were the P4's to the amps. All I can say is WoW. What a revelation in musical presentation, wholeness and fatigue-free listening. The surprises in the music are startling - a low subterranean shudder from an acoustic venue where you had never heard it before, the shimmery airy fade of a cymbal, the chest sound of a vocalist that was previously all "mouth"...I could go on and on. I cannot say which component provided what benefit, except to say that each addition was an enhancement. I tried P3 cables first, and upgraded to P4. Other than that, all others started at the highest iteration of the line. Coming from a full-blown Synergistic Research approach, the simplicity and elegance of the physical setup, the attractive look of the entire HD line, were simply icing on the sonic cake. Needless to say, I'm a fan.
