Not necessarily BS, but to attenuate the bass to -3 is just a totally unacceptable solution to the problem. If I wanted to listen to music that way, why have 6 speakers and a 240w amplifier. And I don't care if I'm going 30 or 130, if it sounds like crap, then crap it is. Infinity's whole argument is to weaken the music instead of strengthening the stereo. This crossover should have been in the initial design.