I have never heard Rega Speakers and their web site, nor any reviews I have found online, show any frequency response curves or testing, making even a guesstimate hard as to the difference in sound between the M60 and RS3. I can tell you that the M60 has a sound similar to Paradigm speakers, something along the Studio line, Studio 60's,IIRC, so if you have a Paradigm dealer nearby you might be able to listen to a set of Paradigms to get an idea of what Axiom has to offer. I suspect from the number of drivers and such the RS3's might sound similar to the M50s, but this is pure speculation.
