I bought a used SCD-C333ES a few years ago. Will newer CD/SACD players sound much better? From what I read, Oppo is not as good as a dedicated CD/SACD. I saw a used Sony XA-5400ES on eBay goes for about $800 but that price is on the high side for me. Actually the specs on the C333ES are similar to the 5400ES.
I bought a fairly recent Marantz AV7005 Preamp, so CDs might use player as a transport with digital out. I am so happy with the improvement of sound with separates compared to my old AVR that am wondering if I can find a better disc player also, or if spending more will have negligible improvement. Thanks.