Do they have to be in-wall, or can they be on-wall? Anthony Gallo speakers are perfect for on-wall HT setups, and can still produce wonderful 2-channel sound. You can mix the Reference Strada and A'Diva in any combination to have a great system.
I bought an in-wall and in-ceiling setup from Mirage, but never ended up using them. I went in the other direction and got the OMD-28s. :-D I listed them, but I don't think many like in-wall, as you lose the 3-dimentional soundstage. If you are set on in-wall, email me and I will give you a great deal on these unused Mirage.
Good luck.