Not familiar with the exact specs, although with a designer like Mark Glazer and Harman's substantial R&D facilities I wouldn't worry too much about that. Each of the Revel products tested here (and in other places) so far came out very well in terms of linearity, directivity, distortion and subjective impression. I own and have owned other 'objectively good' loudspeakers, but it's easiest to discern differences between recordings on any of my Revels. I own the F206, M105 and C208. The C208 is actually my favorite, although it is designated a center speaker, I don't see why it couldn't be used as a midfield monitor in a stereo setting. It's a bit bulky, but it's a powerhouse - and with its smaller 4" midrange its dispersion pattern fits the tweeter/waveguide assembly perfectly.