Yeah, I've noticed even more so now (at first I was just enjoying have decent speakers right next to me in the front) how bad the backs are... when I crank it up you can definitely tell the backs arent having it. I'm thinking of doing the type-r's for my fronts and moving the fronts to the rear and getting a 4 channel amp (50-75watts rms) and see how that goes. I keep hearing mixed things on bass tubes and havent heard much of anything regarding the infinity basslink subs.
12' Grabber Blue, 101A Package, Security Package, MT82. Base stereo mods