As far as I know JRDG uses mostly Cardas Golden Refs in house for baselining. . . Only ICs I have used on JRDG are AQ Sky. . . I use Cardas Golden Ref speaker wire between JRDG 312 and Vienna Mahlers. For PCs I have tried PAD Anniversary, Cardas Golden Ref, and Shunyata Anaconda Helix alpha. I like Anaconda best, Cardas Golden Ref 2nd, and PAD Anniv far last. There are some reports of very good results with Elrod PCs. . . and I will eventually try an Elrod Statement on 312. I hope also to listen to JRDG components connected by the newest Shunyata ICs. G.