I have owned both & could not hear any difference between these players in A/B testing. I had them both hooked up to the same preamp (Hovland HP100) and I used the same exact cables. I simultaneously played two identical CD's on both machines with one player running 5 seconds ahead of the other. This allowed me to hear the same musical passage on both players by simply selecting CD1 or CD2 on the input selector switch. No difference in the sound. However I did keep the SCD-1 simply because I preferred how it looks in my system. They are both a terrific value in the high-end audio market.