I owned the VX-R Twenty for several years driving Vandersteen model 7 Mk2 not a warm speaker at all - magical sound and ayre amps competes well above the $20 K range. Some would say IF you can live with 200 W, it sounds better than the MX-R. I have spent some enjoyable time listening to Blades driven by VTL, quite lovely sound.
might I ask why no home Ayre demo ? I know more than a few Ayre dealers who would send me home with gear....is there perhaps a bit more to the story ????
BTW, Ayre support and engineering and build quality if fanatical. I upgraded to the Vandersteen amps but the Ayre are no slouch....