It does make sense and I'm glad the sub(s) receives the low fequencies once and not multiple times for each speaker delay. When I visit w/ others, I notice their stereo's sound and often hear a detachment and seperation between the sub (or base module) and the other speakers. I hear this in people's cars as well. The base is a seperate entity from the rest of the frequencies. I can do this with mine to some extent by boosting the sub volume. There is a [narrow] sub volume range that melds with the mains. If too low, the overall sounds is thin, and if the sub's volume is too high, the lower frequency range detaches itself from the whole. Just yesterday I busted out a system set-up cd with warble tones at ...80, 70, 60, 50 40 30 20 10 hz. With the disc, I listened for a change in volume where the mains cross over to the sub. That actually did help; I made a slight udjustment by about 10 minutes on the subwoofer's volume dial. IMO, the sub interface is the hardest to get right. Note that if the main speakers have mid/treble attenuators the base to sub can be fine tuned even more seemless.