I have an SCD-1 that has had the superclock II and transport mods done by Richard kern. I A/B tested the SCD-1 against an Audio Research CD-2 which I have had in my system for several years. Initially the test favored the ARC, but has the Sony has now had several hundred hours of operation, it is now no contest. The Sony sounds so good that I'm beginning to question if I should continue to buy new records. The sound stage is incredible, the bass is unlike anything I've ever heard from a cd and most important, there is a sweetness and musicality that I previously believed could produced by a turntable. I have been an audiophile for more than 35 years and although old habits are hard to change, my modified SCD-1 is doing just that.
Jeff
Jeff