Mono block install question

I am planning on purchasing a pair of monoblocks to run my Magnepan 3.5's with my M&K subwoofer and my Conrad Johnson amp, along with my Marchand active crossover. I am confused on how to wire this setup. I don't know if I should run from my preamp to the sub, then from sub into the active crossover, from the crossover into the CJ for the midrange/tweeter, then to the monoblocks for the bass being fed to the speakers. This seems logical to me to filter all of the lows to the sub at the crossover then to seperate the mid/highs from the remaing bass being fed to the speakers. Is there any better ways to do this? Is this just overkill? Would I just be better bi-amping? Are there any better setups for this? I bought the active crossover because I was running the full signal to the sub and speakers from my CJ single amp, but the maggi's sometimes had trouble with certain music because of their lack of bass. I am looking for the best setup using the crossover with the sub and also getting into a higher end amp(s). Any advice would be appreciated.