factors that will determine the amount/volume of bass
--RMS wattage
--box type/size
--cone surface area
--sensitivity
time to compare
-the Orion can handle 2000watts RMS and the Kickers only 1500watts so they are down 500watts
-but a square 12" has almost as much cone surface area as a round 15"
-and then the sensitivity of the Orion is 84dB and the Kickers are 89dB, a speaker that has a sensitivity that's 3dB higher will only require half the RMS wattage to achieve the same amount of volume
so for this comparison the Kicker setup will pound harder