i own the k2 hd sampler. i compared the sampler to 4 "originals", including the symphonic dances, carmen suite xcpts, 4 seasons and the pachelbel. as preference for sound is subjective i decided to allow 3 of my audio buddies to sit with me as i did the a/b tests. the k2 hd was preferred for the pachelbel, but not for the other three selections.
as has been the case before, the superiority of one recording technique is disc dependent.