OP:
I have the Luxman 507ux already, and i love it, but Ayre is also a sound I have liked in the pas and sometimes think about. I do think they are both smooth, extended and warm, but with Ayre I hear what seems a darker sound, like it takes noise out of the room and lets you hear more of the venue. Maybe I'm nuts but that's what I hear and like about it.
Best,
E