I just want to add another thing about the amps with active LFRs. I really like the clipping protection circuit in the ADAs. Without being overly-offensive, the channel shuts down. I like this much better than a compression circuit because it lets me know if I need more amp power.

So far, I've never had a need for more than a 1500 for any of the Axioms. The only time I've been able to activate the 1500 clipping circuit is when I had two stacked M5s (a 2.5 Ohm load) and also an M5 stacked on the M100 (again a heavy load). I was still able to pull 112 dBC peaks on the stacked M5 and 109dBC peaks on the stacked M5/M100 at 12 feet away before shut-down.

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