In the Abso!ute Sound review of the Mirage OMD-28 (link to pdf review
here), reviewer Chris Martens said, in part,
Moreover, the Mirages distinguish themselves through their ability to vanish into the soundstage. Many speakers claim to offer "disappearing act" imaging, but I think the OMD-28s take this to a much higher level--one bettered, in my experience, only by speakers such as the reference-class Mbl 101E (an omnidirectional speaker against which all others can be judged).
I have their little brother, the OMD-15 as the anchor of my LP-driven 2-channel system, so my recommendation for this type of speaker is not just based on reviews. The Mirage Omniguide approach to soundstage energizes a room more like real instruments and voices than any other speaker I've heard.