1 L7 8'' subwoofer will do that //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
i hit a 136 db "outlaw" style spl with 1 kicker comp vr 8'' subwoofer running on 350 watts RMS (planet audio power)
so there is no reason to think that an L7 8'' subwoofer wont do the same.
i have an 8'' L7 i just bought via this forum. i dont really wanna sell it but i'll give it to you for exactly what i have in it. i bought the subwoofer for 65 dollars. then i bought a grille for it, for 12 dollars. then tomorrow i am having a custom built ported enclosure built. so if you dont want that you better let me know.