Coincident Pure Reference vs SP Tech Revelations

Has any one ever heard these side by side or done somewhat of a comparison? I was wondering the Sonic differences. I have heard the Pure Reference and that are just Awesome! Thanks for any feedback!
Optarchie, these two speakers are both great, however they are two very different sonic "animals" in there over all sonic presentation. If you love microdetails, transparency, a gaint layered soundstage, and finally bone crushing dynamics the Revelations are for you. The Coincident's are wonderful speakers, very musical, but don't have the Prat/dynamics of the Rev's.