i hav 2 l5s with a hifonics 1206d, in a ported box, n even at half volume, in the front seat of my jeep, it makes things blurry in front of me. if ur a noob to car audio like me, sq doesnt even matter, its all about loud bass! haha n u will be heard from far away with 2 12" l5s
i've got a 15" L5 i've been pushing with a kicker 1000.1 and i got a guy who really knows his stuff to build me a badass ported box and its been serving me VERY well for well over 2 years =)