Now that I've had the opportunity to own multiple v4 including the M100 and play around with different receivers and amps, I'm starting to pay more attention to average and dynamic speaker ratings. If you put a 600W amp in the LFR1100, why would anyone want more? The 1100 is rated at 2400W dynamic; that's 4dB above the max average rating of the amp. Anyone listening to well-recorded music at 600W, is bound to drive the 1100s into compression or worse provided the internal amp has 4dB of headroom.

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