Point of diminishing return for a DAC


I am currently using a Mac mini as a Roon Server with an entry schiit DAC. I am considering buying another DAC. My question: what are the opinions on the point of diminishing returns for a DAC. My system is Golden Ear Triton 2+, Prima Luna preamp Carver tube amp. Quobuz for streaming...

Look forward to thoughts and advice...
128x128fastninja12
I'm a firm believer in spending a good chunk of your budget on the digital front end.

Good clocks + reduced jitter + w/e other mumbo jumbo is happening = improvements in PRaT, low end tonality, reduced sibilance, better staging, holographic imaging, blacker backgrounds and just a sense of ease/liquidity. 

It's effectively replacing a CD player. 
I Love it when reviewers tell you ,the dac for 2500  you just bought is not as good as a 500 dac....