Payip: Many recording studios and mastering facilities have taken to using "audiophile grade" speakers and left the "commercial grade monitors" behind. The repurcussions that such a move has on the finished product has the makings of an entirely different thread on that subject, so i'll leave that alone.
As far as some of the other comments made, i agree that a single driver or co-axially mounted drivers could work quite well here. As to my suggestion of a small vertical MTM array, even though i suggested multiple drivers, the acoustic center of such a design is actually quite compact. In some cases, it will be smaller than a two way running an 7" or 8" and a dome.
By physically sandwiching the drivers together in a vertical array, the cabinet size is reduced and imaging is improved. If using a dome with two 5 1/4" drivers, the center to center distance from woofer to woofer with the tweeter in the middle would only be about 8" - 10" or so. As you can see, the spacing between drivers is quite limited, so the sound appears to come from one larger driver. Using 6 1/2" drivers would give you a center to center spacing of the woofers of about 10" - 12" or so. The figures quoted take into account various basket sizes on the mid-woofers and that some tweeters use quite a bit bigger faceplates than other designs. While some 1/2" to 1" domes use faceplates as small as 2", others have faceplates that are 4" or larger.
Given that some of the speakers mentioned here use fewer drivers with wider vertical spacing, this type of design for this application is not as far fetched as it sounds. Remember, the wider the spacing between drivers, the further back you have to sit. Sitting appr 3' away from such an array would allow plenty of time & space for the signal to blend together. This is especially true since the two drivers "sandwiching" the tweeter tends to act as a waveguide. This gives us better blending of multiple drivers AND controls the dispersion. Whether or not that you can find something like this that suits your sonic preferences and / or price range may be another matter all-together though. I'm just offering food for thought : ) Sean
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