Dac is a mature technology now...
I bought 4 basic very different low cost dac... Each one serve in my 2 system now at the right place for the right job...Each one is different not only in sound but in possibilities...
I dont need any COSTLY dac upgrade ...
There is a marketing scam here by OMISSION : the rightful electrical, mechanical and especially acoustical embeddings controls are the key to audio once a synergetical choices of relatively good basic components is done...
The rest is hype conditioned by ignorance and marketing strategy on reviewers ....
There is a difference in dac this is evident but so slight compared to the embeddings controls i just described that people buying a dac after another are simply deluded... They confuse a hobby based on acoustics with a compulsive obsessive disorder...
Buy a low cost or a costlier dac after studying users and specs review and call it a job done... Dont go on a buying spree...buy books about acoustics and search articles on acoustics on google scholar...
Nothing else will help so much...
Try to understand the acoustic definition of all music, audio and acoustic terms and concepts and their specific differences in these three fields......
Set a few experiments for yourself in your room or in your system it is costless and fun ...
This is the hobby. the hobby is not purchasing as a joyful widow with a full wallet in the lucky event of his husband death ... I suppose you had a family to serve with your money... 😊
And dont conclude that i miss anything in sound quality with my audio systems, there exist a minimaql qualitative threshold that any acoustician can DEFINE ...
Dont look for beyond this threshold by buying upgrades you will fool yourself... Upgrades cannot replace acoustics no more than acoustics can replace the absence of synergy between components..
To understand and recognize this minimal acoustic threshold uyou must learn how to identify aspects of your sound experience with controls over acoustic concepts... There is many ways to degrade or improve these acoustic controls...
Buying a dac to control your acoustic experience is preposterous and illusory...