Yes Robb, as Ken and Jason indicate, there's no special matching that would be going on with the M60s and M3s. The 6 1/2" woofers in the M60s cover below about 200Hz; the 5 1/4" midrange takes over above that, so in the important midrange the M3 would be using the different 6 1/2" driver. M22/M2, M60/M22, etc. are better matches.

-----------------------------------

Enjoy the music, not the equipment.