I would be shocked if you found that Ayre front end combo insufficient to drive the C4's - that's a stout amp.
You don't highlight your room size or listening habits. I can only comment on the Dyns - I've owned the C2's and C4's, amongst several other models - but have never heard some of the others or only at shows.
If you have a medium sized room (say 15x20 or smaller), the C2's are a wonderful speaker and the Ayre front-end would be a great match.
If you have a large room, the C4's are a much better choice and, again, I think would mate very well with the Ayre gear. When I moved my C2's from a medium room to a very large room, I wasn't nearly as satisfied. The C4's are really in a whole other league when you get into "big" music - rock, large-scale orchestral, etc. - but really need the room to support them.
If you've heard all the speakers on your list, hopefully you've formed an opinion of which you liked best, given the different conditions under which you heard them. I think the Ayre gear will compliment the sound of all of the speakers you mention, not change the character, so if there was a clear favorite from your auditions, I'd think you'd be safe to go with that.
You don't highlight your room size or listening habits. I can only comment on the Dyns - I've owned the C2's and C4's, amongst several other models - but have never heard some of the others or only at shows.
If you have a medium sized room (say 15x20 or smaller), the C2's are a wonderful speaker and the Ayre front-end would be a great match.
If you have a large room, the C4's are a much better choice and, again, I think would mate very well with the Ayre gear. When I moved my C2's from a medium room to a very large room, I wasn't nearly as satisfied. The C4's are really in a whole other league when you get into "big" music - rock, large-scale orchestral, etc. - but really need the room to support them.
If you've heard all the speakers on your list, hopefully you've formed an opinion of which you liked best, given the different conditions under which you heard them. I think the Ayre gear will compliment the sound of all of the speakers you mention, not change the character, so if there was a clear favorite from your auditions, I'd think you'd be safe to go with that.