My buddy stole mine and listens to jazz on them at a quarter Watt from 14 feet away in a 6000 cu ft space. When the missus goes to bed, he turns them down to a 64th of a Watt.

At my place, they met the full fury of an ADA-1500 and unleashed Armaggedon in my 4200 cu ft space.

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