Jeremy, thanks for sharing the absolute sound review. It appears the original 800 would be best with my 568.2, correct? Or...latter version 800 replacing my 568.2? My DSP5500/5000c supports coaxial digital inputs. Appears 800v4 supports only SpeakerLink outputs not compatible with DSP5500/5000C.

Trinnov Altitude 16, 271, DSP7200SE front L/R, DSP7200SE HC center, 556 amp for rear surrounds, Magnetar UDP800 universal disc player, REL Acoustics Subwoofer Carbon Special, ROON Nucleus One,
Direct TV satellite box, Xbox One S, Nintendo Switch, Sony XR 77A80J OLED