01-24-15: RlwainwrightDifferent configurations and different looks, but very similar dispersion patterns. The Ohm is omnidirectional and the Gallo tweeter has a 300+ degree dispersion pattern--almost an omni as well.
The biggest sweet spots I have ever heard came from two very different speakers: Ohm and Gallo.
I've had several Mirage bipole and omnidirectional speakers and you're right--they throw a very stable and 3-dimensional soundstage that stays put regardless of your listening position. You can even ge to the left of the left speaker and still hear a left-to-right soundstage just as you would hear in a live performance if you were sitting to the left of the stage.
A year ago I replaced my Mirage OMD-15s (omni floorstanders) with a pair of Magneplanar 1.7s. To my surprise the soundstage is pretty similar and I can still sit at my computer--to the left of the left speaker--and get a credible soundstage.