I'm a collector who values quality over quantity (main amp is a Kenwood Supreme 600, also own: Kenwood KA-9100, Yamaha CA-1000, Sony TA-5650-VFET, Pioneer SA-8800). I've never owned any Sansui equipment, but at some point I'd like to add a high end Sansui integrated to my collection. Which ones do you Sansui folks prefer. Are the earlier ones (AU-999, AU-9500) as good as the later ones (AU-919, AU-20000-et al, AU-X1)? Are there any sleepers to look for? I'd prefer something with all discrete components, without some sort of proprietary component (like the Kenwood KA-9100's power module) no longer attainable (without buying a parts unit). Suggestions, comments, criticism.