I have finally finished the install on my 2004 Nissan Desert Runner. I have an Alpine CDA-9833 head unit with two MRV-T420's bridged powering a set of MOMO 6500's, and a MRD-501 Powering a M-104 10" in a custom band pass enclosure. I am trying to get the best possible blend between the sub and the components. There is quite a bit of distance between the mids (lower door panel) and the tweeters (A pillars) I have several other amps that I could install if needed (Carver 4060 and 4120) My head unit has an active two or three way crossover that is infinately adjustable or I can download custom settings through the i-personalize website. Which would be better, bi-wiring the crossovers or bi-amping the 6500's and running the speakers directly through the head unit?