Jeff, if you disconnect the rear drivers of a passive or active LFR1100, it doesn't sound like an M100. It sounds like a Bose turd!

Also, the cabinet of an M100 is different than an LFR1100. The LFR1100 is braced different, contains more stuffing and has fewer vortex ports.

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