I have had my M-12 switch for a few weeks and it sounds wonderful. Who would have thought a switch could make such an improvement.
Well, yesterday I received and installed the JCAT Optimo 3 Duo Linear Power Supply. Wow again! Immediately! It is 12 v and two rails, and Marcin made me the beautiful cable for the M12 as well as one for my Verizon Modem (why not I had the extra rail on the power supply, and it would not do the 18v for my Nucleus (already with an HDPLEX PS). It is beautiful craftsmanship and has again opened up my soundstage and more clearly focused the instruments / voices. It just sounds better. I think this power supply is a good deal compared to inferior less expensive ones or considering the cost of a Sean Jacobs etc. I am also eyeing his new Streamer! Customer service with JCAT is top notch.
Thank you Marcin! Ken