I've owned the Perfects before, and the 2002 K's. The K's win by a mile. The Perfects sound good, but thats about it. They lack in the SPL area, and the SQ isn't good enough to warrant to buying them in my opinion. Plus I blew mine sending a little over 350. The K's on the other hand will sound just as good, get louder, and you won't have any power handling issues. And to whoever said they ran a lot of power over the RMS to their Perfects, you're either lying or your amp is lying to you. 350 is the thermal RMS. You can't argue with physics.