Since imaging is a top priority of NYaudio98, let me toss out a few comments.
Good imaging would include two attributes in abundance: Precise localization of sound sources, and a sense of immersion in the acoustic space of the recording.
To a certain extent, these two attributes trade off against one another. The more powerful the in-room reverberant field, in general the greater the sense of envelopment and immersion, but at the expense of precise sound source localization.
If we can introduce a fairly long delay between the first-arrival sound and the onset of a powerful, diffuse reverberant field, we can come very close to "best of both worlds". In a big room this is something a good dipole can do well, provided it's out from the wall far enough to get about 10 milliseconds' worth of path-length-induced time delay on the backwave. That calls for about five feet of "breathing room" behind the speakers. Obviously this isn't practical in a small room, and we have to get creative.
If any of you are going to be at T.H.E. Show in Newport Beach in a few days, stop by Hilton Room 920 (Electra-Fidelity) and see what is arguably the current state-of-the-art in small-room-friendly speakers that can deliver that sense of immersion and envelopment along with good sound source localization.
If the goal is approximating the illusion of a live concert, this sense of immersion is arguably a key factor. Another is good dynamic contrast. Another is that unmistakable aroma of weed. Any two out of these three should get you most of the way there.
Duke
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