Dune sucks on analog audio, so is my Oppo BDP-80.
So I send them using HDMI and let my Onkyo doing the DAC thing.
I had a CA 640C b4 and it's very good sound and a great bargain for the price. I have never heard the Oppo-83SE but it should come very close to dedicated CDP.

so, if you have very good pre-amp for the DAC, a normal BD player send the signal using HDMI will do (the sound will be more digital compared to analog) but can save lots of $$$ compared to buying a dedicated CDP (which I am doing it now)

An analysis IMHO of price vs performance of audiovisual equipment:-

from RM500 change to RM2000 equipment --> the performance is very big and can differentiate very easily

RM2000 --> RM10000, still can detect but not as obvious as the 500 to 2k jump

RM10000 --> RM100k, u might get only 10-15% of improved performance for a 1000% different in price