I've used the Cambridge Audio DacMagic 200M and the Wyred4Sound Remedy Reclocker with my 6000 CDT for over a year, and I'm still impressed. To my old ears it sounds a little closer to 3-D sound than what I had in my budget system before the upgrade. It's especially noticeable to me whenever I play Disc 4 of the Miles Davis Seven Steps box. Mort Fega's introduction and the audience applause prior to Autumn Leaves creates a fairly credible illusion of being there in the concert hall. And once Davis and the band start to play, it gets even better. Every CD I've played so far has been improved tremendously, no matter what style of music it is. Not bad for an investment of around $1500.