The motion 4's aren't active speakers and newegg has the motion 12's for $600 a pair. Do they sound as good as the airmotiv's? If they did, that would be nice but then again i'm sure you would have to find an amp that with pairs well with them. Also i think i read that the martin logans use paper drivers. when i think of paper cones i think of crappy car speakers or 20 year old walmart stereo's lol.