Hello Everyone, I have two subwoofers for my system. The M&K v-1250THx and the Energy ES-10. I set all my speakers to small so the subs can handle all the lows. I have been reading that the lowpass filters of my Yamaha receiver is 90HZ, and i should set my ES-10 crossover as high as it can go and my M&K to the lowpass setting of 80HZ, so the lowpass filter of my receiver can work properly. Is this correct?