I own both pieces, (how's that for compulsive)? I don't really think that there is a comparison here. As stated in the mini review that Mark gave, I too concluded that there must be something he left out, since everything he said about the DK, seemed much better, plus I agree with his assessment, most generally.
I think the DK is more fleshed out, detail wise, and has more control, better bass, better imaging, and is more harmonically rich, (almost the same as fleshed out of course). I can't understand picking the Jungson over it, but this is one thing that is often discussed among knowledgeable audiophiles, which is system matching. Perhaps it just hits Mark's hot button better, and makes him happier.
But for my personal taste, and even transcending that, in to the beyond subjective mode, the DK is a better piece of gear. For the money it is downright silly, in terms of performance. It bests many separates I have heard, and many integrateds, too. Frankly it is the best sounding integrated I have heard, perhaps up to the best VAC piece, which retails for @$20K, so not fair to either to compare.
It is, in a word, remarkable, for the price, and wonderful, musically.
I just last week replaced the tubes I was using, which were Amperex, with the Telefunken, NOS, circa 1965 or thereabouts, and the improvement was 'remarkable'.
Kudos to the DK Company, they have really done it.