I've owned the 8200mkII and now own the AX7e. I agree with Jmcgrogan2's opinion between the two. I do however think the Ayre is a higher quality, more accurate amp that provides more inner detail. It needs to be paired with components that bring the synergy you like.
It's tough to move up the Ayre line without selling your car.
It's tough to move up the Ayre line without selling your car.