my items are below

1 x alpine pdx1.1000 monoblock amplifier
2 x Soundstream xpro 12 300watts rms woofer

i am using 2 dvc woofer at 4 ohms but i dont see any heart pumping action

the woofer is basicly quite strong but i dont feel as much bass for the amount i paid

do you think my setup is wrong??or not enough power from the car??

tq