You should somehow get your hands on a 150v2. You'll say oooo la la. Then get a 160v4 and you'll pitch that 150 over your neighbor's roof. Then when you get your active LFRs, you'll hear what a real virtual centre sounds like and won't want to put the 160 back.

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