I haven't heard the Jay Audio CD12 but 6 Moons gave it an excellent review. I also respect the opinion of Teajay. I can say that I've owned the PS Audio PWT for over 7 very happy years. It mates beautifully with my Yamamoto YDA DAC and sounds very natural and emotionally engaging. I have no reason to doubt excellent results with the Jay Audio. Seems that you couldn't go wrong with either choice. Redbook sounds fabulous through my system.
Charles
Charles