AYRE CX-5 OR RESOLUTION OPUS 21 MODIFIED


I am looking to upgrade my CD player and wish to spend $5000.00-$7500.00. Has anybody heard the Resolution Opus 21 modified by Great Northern Sound or perhaps the Ayre C-5XE? Any comments regarding the two mentioned or anything else that might be worthwhile in my price range?
Thank you.
kjl
All I can add here is that as a owner of the C5xe, I couldn't be happier. Every disc I play reveals something I never noticed before and the tonal presentation is incredible.
Can't comment on the Resolution Audio, but own the Ayre. It is a superb piece of gear.
See my review of the modded GNSC Opus 21

http://forum.audiogon.com/cgi-bin/frr.pl?rdgtl&1129165510&read&3&4&
The threads on the cx5 are excellent. I'm wondering if all you guys have balanced systems and if I could expect similar results using its single ended outputs.