My experience with the Harbeths in terms of soundstaging/imaging is that they seem to achieve a large soundstage in a large room, but could not in my smaller 13' x 15' room. (I had the SuperHL5Plus).
I've had tons of different speakers in my room and love a speaker that can do great soundstaging/imaging, and I've never had any problem achieving expansive soundstages. But the Harbeths consistently had a somewhat foreshortened depth and width. They "disappeared" nicely and imaged far better than their looks would imply, so I think they do great imaging generally speaking.
However, when I hear the same Harbeths in the very large, open showroom floors of a local hi-fi store, they can sound much more expansive. In fact, last time I heard the SuperHL5plus it was in a very large show room, with subwoofers, and the speakers spaced quite far apart. The soundstage was absolutely massive, with very nice depth.
I've had tons of different speakers in my room and love a speaker that can do great soundstaging/imaging, and I've never had any problem achieving expansive soundstages. But the Harbeths consistently had a somewhat foreshortened depth and width. They "disappeared" nicely and imaged far better than their looks would imply, so I think they do great imaging generally speaking.
However, when I hear the same Harbeths in the very large, open showroom floors of a local hi-fi store, they can sound much more expansive. In fact, last time I heard the SuperHL5plus it was in a very large show room, with subwoofers, and the speakers spaced quite far apart. The soundstage was absolutely massive, with very nice depth.