The JL 500/5 sub channel is 250 watts RMS. The RMS on both the 15W0's and 15W1's is 150. The RMS on the 15W3D4 (for sale above) is 400. So no matter ull either be overpowering the W0's by a little or underpowering the W3's. My suggestion is to just buy SSpiro's sub since it suits ur needs pretty well and its at a good price. So yeah, just make sure u know what ur buyin before u buy it.

good luck

-Kevin