The stock Oppo 83se is reported to sound pretty good for a $900 one-box-does-it-all solution. You may want to be more specific with your question regarding the price range of players (or specific players) you are trying to compare to. One place to start would be to look at the information out there about how the stock 83se compares with itself, after it has been modded.
There are several well regarded companies modding the Oppo 83 SE for the purpose of providing high quality two channel (or multi-channel) audio. Check out ModWright, EVS, and RAM. If you believe these companies are achieving significant performance improvements by modding the stock player, your answer to how the stock 83se compares with "truly stellar" players would have to be "not so great." However, the potential is apparently there by upgrading op-amps, power supplies, clock, and output stage. At the top of the heap (at least price-wise), Ayre's DX-5 at about $10K starts life as an Oppo 83.
There are several well regarded companies modding the Oppo 83 SE for the purpose of providing high quality two channel (or multi-channel) audio. Check out ModWright, EVS, and RAM. If you believe these companies are achieving significant performance improvements by modding the stock player, your answer to how the stock 83se compares with "truly stellar" players would have to be "not so great." However, the potential is apparently there by upgrading op-amps, power supplies, clock, and output stage. At the top of the heap (at least price-wise), Ayre's DX-5 at about $10K starts life as an Oppo 83.