(r/headphones) What are the audible differences between dedicated DACs/high end vs low end DACs (only respond if you perceive/believe there is a difference)

All questions are optional. If you identify/use r/headphones the most out Headfi, r/audiophile, r/headphones, Computer Audiophile, Hydrogenaudio, respond here. Otherwise, please respond there. This survey is referring to DACs which are functioning and are of a somewhat reasonable design, eg functioning as intended (working, no oscillations, reasonably flat frequency response, not ultra-high distortion). This survey is anonymous and is for academic purposes.