I have been an electrostatic guy since the very early seventies- Quad ESLs (which I still have, along with a matching set of Quad mono tube amps); then Crosby-modified 63's (which I also still have, used with vintage ARC stuff).
I also wanted more impact, bass and dynamics. Went with Avantgarde Duos. The horns can give you what the Quads cannot, but still have an incredible ability to articulate, move 'fast' and sound boxless. Voices will not be as translucent as the Quad 57, but then, no other speaker that I have heard, including the later Quads, do as well either. (The trade-offs though are enormous, in terms of SPLs and bass, or lack thereof- the Quad 57, set up right, in the right room, is simply uncanny, but it is very limited). The horns give me a compromise I can live with.
I also wanted more impact, bass and dynamics. Went with Avantgarde Duos. The horns can give you what the Quads cannot, but still have an incredible ability to articulate, move 'fast' and sound boxless. Voices will not be as translucent as the Quad 57, but then, no other speaker that I have heard, including the later Quads, do as well either. (The trade-offs though are enormous, in terms of SPLs and bass, or lack thereof- the Quad 57, set up right, in the right room, is simply uncanny, but it is very limited). The horns give me a compromise I can live with.