Add a DAC or buy a new CD player?


I currently have a Rotel 855 and am looking to upgrade. I plan to spend less than $1500. Am I better off adding a DAC or buying a new one-box player?
kadlec
I left out two bits of info in my original question. I have a pretty good preamp (classe 6) and a large collection of 16-bit cds.
Get a MSB Link DAC. The new version III can be upgraded with a simple add on board later to future standards. Or pick up the original Link I cheaper. The Link II I beleve can be upgraded, but only by the company?? There is also a Cambridge Audio S700 DAC for auction on this site by some dealer. It has a DAC-7 converter and HDCD. Is also its own issolation platform. Don't know his reserve, list is $600.
hi kadlec, i also had a *pretty good* preamp - the linn kairn, w/its latest iteration of the switchmode power-supply, is no slouch. but, it *is* solid-state. i think digital needs tubes. rogue audio 99 preamp (if your amps' input impedence is high enuff), cary slp98, melos ma-333/music director, or melos sha gold/reference/maestro, would *all* give ya better sound/dollar than your classe w/upgraded cd, imho. (these are yust the ones *i've* personally heard). all the above can be had for less than $2k, the sha gold, for less than $1k. all are also f/s here, & on other classified audio sites, btw... doug
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I'd pick up a used Sonic Frontiers TranDac, I got one for $100. Then, go tubes in the pre