Dweller, I agree with you. I do not believe in extra crossover in.....if you study the set up I advocated, the integrated signal would run directly into the main speakers, without passing through a subcrossover. Furthermore, the sub would get a full range signal and its crossover or drive would reproduce the only thing it could. My wiring system does not send all signals to the sub crossover and then, some back to the main speakers, after it has been crossed over, by what is most likely an inferior design. The main disadvantage of this set up would be that the signals to the main speakers would the fullrange, thus not really cutting any output in the lower frequencies. Still, for what I can hear, it works fine. Cheers all!