"cymbal sound like crinkling paper"
Yes his description of the highs is a bit out there, but I think know were he's coming from.
I too on Redbook find DS has a lack of "jump factor" and midrange body to the sound and the bass of Multibit always impresses me over DS, and cymbals on DS either on rock or orchestral don't hit hard and clean, they are either too laid back and sweet or in your face and harsh depending on the filtering used.
Delta Sigma has massive noise that need to be got rid of a bit like Class D amps with it's switching noise.
(Teac gives may different filter combos for the user to play with their DS dacs)
It all comes down to the filter/s that have to get rid of it.
I read a while back one of the digital gurus on DIYHI.org where all the big boys play like Thorsten Loesch (AMR), Charles Hansen (Ayre), Pedja Rojic (Audial) and a bunch of others used this analogy. (hope I got it right from memory)
In Class D the switching noise can be filtered two ways either very high and out of the audio band, which leaves some noise in the audio band, or low which has phase effects and HF roll-off's with in the audio band, or half way a bit of both. One sound hard "like crinkled paper" the other sound soft (opaque) or a combo of both.
Cheers George