The imaging on the DV84 is great. I personally am not a big horn fan, You will want a horn in a room with a ton of acoustic absorber, but not want horns in a "hard" room (tile, wood, floors, your basic reflective type of surface). I think the venturi speakers are of higher quality than the acoustechs.
If you really want something that jams, get 2 DV62clr's (use as towers) and the V1220 sub. That is a darn good sounding setup for GP.