I would personally get the Funk 18.0 passive.
I really don't understand the obsession with "2,000W-4,000W" power and "130dB" output when most rooms are SMALLER than 20' x 20' x 10'.
My family room is 18' x 20' x 12', but really wide open to the dining room, kitchen, and formal living room. Some people would consider it one huge open space. And I just don't see the need for all that power and output.
I guess it's just in case you buy a 4,000 S.F. house with a room that is actually bigger than 20' x 20' x 10'?