Polk Audio GNX124

-or-

Visonik V126D4

-or-

Audiobahn AW1200Q

I'll be running 2 of whichever i choose with an amp that puts out 150 watts rms @ 2 ohms (for the Visonik and audiobahn) and 100 watts rms @ 4 ohms (for the Polk Audio). What i'm looking for is two 12's that pound as hard as possible. Any other suggestions are welcome but i need to keep the price below 200 bucks. Thanks