I switched from an Oppo UDP-205 to the T+A DAC200. From the first few seconds to date, it always amazes me. It is not even a fair comparison between the two. More of everything, clarity, soundstage and realism. All the things you mention and then some more. Unless some drastically improved tech comes along, I do not envision changing this DAC for the next few years.
Do you recall "instant improvement" from your first stand-alone DAC ?
After weeks of research I recently ordered my first external DAC. My system is modest by most accounts... Van Alstine SET400 amp, T-10 tube pre-amp, Salk HT2-TL speakers, WiiM Ultra streamer/DAC. It sounds very good to me... resolving, clear, excellent bass, mids, highs. Then I started reading and asking about streamers and DACs and it seems my system could sound better. So I did a lot of reading and ultimately ordered a used Merason Frerot with factory wal wort power supply. Now the anxiety of second-guessing my choice and what it will sound like in my system. Cuz there are no stores near me to demo DACS. Eventually I will likely upgrade the streamer.
What did you notice the most about your first stand-alone DAC... more clarity, richness, scary good vocals, extended highs, more airy highs, more and better bass ? Better soundstage and imaging ? All the above ?