I have a pair of his Holophonic Silver PC Rcas on my Don Scott modified Accuphase T-100 and Silver PC XLRs that he kindly modified to go from my Marantz SA14 SACD player (pin 3 hot) to my Pass X-1 preamp (pin 2 hot.) Since my Sound Lab backplanes are being updated, I have to use a pair of dynamic speakers that are on loan from the den HT system so this has to be a preliminary opinion. But, they sound a quantum leap more transparent than the cables I was using before including Cardas GR and NR, AZ, Transparent, Audioquest, Alpha-Core. Also, their front to back depth is palpable. No artifacts that I can identify. The improvement is not subtle. More when I get the backplanes back....