Ok I am having a heck of a time figuring out what is going to work best for me. This bass management is really making it stressful for me. Since there is bass management in the 990 and the sms1 I really want to get the best sound and easy as possible. My equipment list is this.

Speakers front Marin Logan Monoliths biamped/low channel and high channel. Center speaker ML cinema. Rears ML areius. Subs are two LFM1 plus. Using hddvd player into 7.1 analog inputs and everything else using opitical. Confused on what to set the settings on speaker size and crossovers. Or should I disable them. And how to do that properly since I have the sms1 as well. My Monoliths provide deep base down to 20hz. I also dont want to overdrive them either. I have 800 watts of power reserved for each main at any given time.