Modern DACs are way better than in the older models, and providing the associated components are of good quality and design you get less distortion, wider dynamic range and less noise, the downside is that they show up inconsistences in voices that the older versions masked, hence some of the older voices that have not been reworked have their flaws exposed, but newer voices have a quality of sound that older models cannot compete with. Yes, it can make some voices sound thin when compared to older models, but in fact it’s the older models that are muddy.
It’s like comparing vinyl to CD, the vinyl has warmth that the CD lacks, but when you compare them both with real instruments, you realise that vinyl is not as good (Accurate) as you thought it was, whereas the CD (If correctly recorded) sounds virtually identical.

Bill