ok so after being on this forum a while ive learned a hell of alot is the past few weeks. its teasing me to get into DIY. one question, ive seen tower speakers with 3 or 4 woofer midrangers in them. and always got confused as to how they managed the ohm values on multiple speakers and still had the phasing correct. I was thinking of getting 2 3 channel amps and using each channel for a different driver in the speaker. basically passive crossover or somethuing right? I know im missing something but want to understand the basics first.a any help?