An Axiom 16 channel processor is not enough. You need 10 channels for main LFRs, another 10 channels for the LFR center, 6 for height, 6 for width, 6 for sides, 6 for back, 12 for ceiling and 4 for subs. Let's see...60 channels. And oh yeah...you need 56 channels for amplification.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated