I was running 5 PP 300's and now have a 4BSST2, PP300, and B100. The new 4B sounds better than a pair of 300's, particularly at lower levels. Overall it has more width, depth, and a 3D holographic sense to the image. Even though my high frequency hearing is greatly diminished, it still sounds smoother to me as well. I can't comment on bass as I have my amps running at 60hz and up.