yeah for $500 you can get much better subs then the L5's. You can get amazing subs for that price you can get a BTL 15 loaded up for less then that I believe. It will desimate L5's
he said L7 james. Also, that nitro amp probably only puts out around 1000 watts. L&z are rated for 1000 a piece. if you want loud, get 1 15 inch Q or SSD buy an HO alt and get a new 2000 watt amp (preferably one that will do somewhere close to 200 watts). put it in a big ported box and you'll be loud.
you can get a BTL 15 loaded up for less then that I believe. It will desimate L5's