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
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.
I have used my C-5xe in both configurations. I like the balanced connection EVER so slightly better. I would not let that be a determining factor.