uve ever heard? i had one in a ported enclosure tuned to 32, on a nine.1 ~ 1200w @ 1 ohm...it was loud as hell but by far the loudest ive ever heard, my 2 10w3v3s had a lil something for it, im guessin my new setup with 2 10s will too. now 2 13av2s would prolly be one of the louder systems...