OPPO 83 and Benchmark DAC 1

Oppo 83 is only a $500 player, I would not expect it to perform anything above that. Its video is excellent, for that price, esp. bluray. Its SACD is very good, but its CD is below average (again, within that price expectation). My question is whether Benchmark DAC 1 can do some good to the CD audio of Oppo 83? Or, there is another DAC near the price range of DAC 1 that will work better with Oppo 83? thanks for all your comments, esp. those who have auditioned Oppo with other DACs.

I think I will get Benchmark DAC1. What is the best way to connect Oppo 83 to DAC1 to my MFA Magus (stereo preamp with RCA inputs only)? Mjcmt: what kind of cables and namebrand would you recommend?

Secondly, does it mean that my SACD playing on Oppo 83 will not go through the Benchmark DAC1, and therefore I need to have another RCA inputs from Oppo 83 to MFA Magus?