These are all very interesting responses. Hopefully mine, although not in agreement will offer some, will offer additional insight. I started with MIT T3 RCA cable from CAL Alpha/Delta. Replaced with XLO 4.1 w/AES-EBU connector. Dramatic improvement. Borrowed HT Cyberlink copper w/RCA and compared to XLO. Like XLO better. Cable or interface? Can't decide. Now have NBS Mine/Serpent w/AES-EBU. Very satisfied. Smoother than XLO, but not more detailed. Again, cable or interface. Many cable manufacturers will say AES/EBU is better connection. Let you ears be your guide.
