I own the Oppo BDP-83 SE as well as an ARC Ref CD7, clearly at opposite ends of the pricing spectrum. The Oppo is a great unit for the price and I would say it holds its own against units in the $2K range as a general statement (I am sure you can find many in that range that better it and many that are materially worse) but in my system on CD playback (which is what the ARC CD 7 supports), there is no comparison. The ARC CD7 clearly betters it on any aspect of audio reproduction you wish to analyze.
I thought I did that with my comment above. Not even close. The Oppo BDP-83 SE is nice for the price but it is not a SOTA player in any shape or form.