I recently ordered the dinner grips Pontus 15th..still waiting for arrival. I guess dinner grips is my androids auto correct. I finally gave in now that Denafrips has been around awhile to try their R2R. I am quite curious if it is something I will like. I did spend extra for the Pontus as I was told it's a little more transparent/balanced than the Ares? Though the Ares gets a lot of love from users & reviewers. Your Sony may just be more to your liking or what you are accustomed to..& absolutely nothing wrong with that.
Roon was a good recommendation here. I have an ESS chip dac, the RME ADI-2 FS. It has 5 bands of PEQ, 2 extra somewhat limited bands as Bass & Treble tone controls. You can pick the frequency & a limited Q for the bass & treble tone control. Has a loudness function that you can control what volume level it ramps down to..as well as a separate 1 to 9db for bass & treble for how high you want the loudness function to peak. The volume control is pretty outstanding too.
It certainly isn't the best dac out there but it's extremely versatile if you want to contour the sound to your liking. I've used Dirac & MiniDsp devices on my 2ch digital system but in the end I preferred the overall sound from the PEQ functions of this device. It's definitely going to give you the more cleaner & balanced sound of a chip based dac. From my subjective point of view the RME puts the vocalists a little more out front, not the deepest soundstage but if I had speakers that needed adjustments in my room the PEQ made up for the RME's audiophile shortcomings. Everything is a compromise it seems. Even though I was told it makes no difference I always used a linear power supply with it..but I already had the extra power supplies. I only mentioned this dac because I saw you mention your sub has some dsp functions.
Good look with your Ares 15th sale. I'm sure someone will pick it up. People seem to love those dinner grips.