Aldog, I have tried and own synergistic research master coupler and MIT Z cord II - so I haven't exactly run the gambit on PC's. I like both PC's on source, the SR's work well with digital and the the MIT has always worked well with my Classe amp which is currently on the sidelines.
F1fanatic makes a great point, I can't recommend dedicated lines enough - it made a huge difference in my system. I found the PC's I have emphasized the top and bottom end but stripped out the middle on my 501's, quiet, blacker backgrounds, but just lost some of the organic midrange for me. I just took that as a litmus test for PC's since both had the same result on my amps. Just my experience...
F1fanatic makes a great point, I can't recommend dedicated lines enough - it made a huge difference in my system. I found the PC's I have emphasized the top and bottom end but stripped out the middle on my 501's, quiet, blacker backgrounds, but just lost some of the organic midrange for me. I just took that as a litmus test for PC's since both had the same result on my amps. Just my experience...

