I'm not sure about your price point or the room size but you might want to add Daedalus Audio to your short list. 97-98db efficient. Dynamic, natural and real sounding. You can check their website and also a review I posted recently on the DA-1.1's, which are my second pair of speakers from Lou.
High Efficiency Dynamic Speaker Suggestions Please
I currently have Von Schweikert VR4jr's driven by Rawson class D monoblocks. These amps have really opened the dynamics openness of the speakers. Recently I heard Opera M12 horn speakers and I loved the presentation, they were even more open and "real" sounding. My thinking is to get them or something similar that offer that dynamic presence that the vr4's don't. I am totally unversed in this type of speaker but would love to learn more. After a lot of research I have come up with some possible speakers including Emerald Physics CS2, Audiokinesis Jazz Modules, Pi speakers, Tyler PD15 or PD30 or the Consonance. Several questions come up. Will my amps be OK with the Opera? My speaker positioning is limited. Placement is 18" off of back wall and 7' apart. Listening position is 10' away. Room size is 17' x 22' x 8'. I have a large LCD TV between the speakers. Are these types of speakers room dependant as much as the VR? Do the have better image depth as the VR? Any and all help is appreciated.