The frequency of my front speakers(JBL N38II) is 45HZ-20kHZ so my x-over on receiver should be set to 45? Also i can do a triple x-over with my Harmon 325 so i can set the x-over on each speaker... My center is listed as 80HZ-20kHZ so i should i should set my center x-over to 80? Then my backs are listed as 65HZ-20kHZ, so i should set it to 65HZ? on my reciver? Is this how it works? Then i was reading i set my sub to the highest x-over setting my speakers are....so if i my highest x-over speaker is 80HZ then i set the sub to 80HZ. Likewise if a speaker was set to 100HZ then i would set the sub to 100HZ. Is this correct? Sorry for all the dumb questions, just trying to get the most out of my system.