No I haven't...
If you are going there, demo list will be
Audionet SAM V2 he have one ex-demo (I think) at around £1000 ish, BARGAIN (precise, vast power reserve, great dynamic swing)
EAR Yoshino/ ECS EA-2 power amp (Amazing sound, really is a great combo)
ADAM Active speakers (I have been recommended the pair many many times, can't wait to hear them)
McIntosh MM2275
Have fun buddy...