enerlevel i wish some time , you test GT-5 12s or 15
s JBL
they are incredible
splfanta gave me link , 2 - gt5 10`s hitting 140 db @ 40hz
3.2cuft box and tuned at 27hz
250Wrms+250Wrms 2subs
having 600~800Wrms power
still i dont believe , man tunning to ultra low and hitting insane loud from 20hz ~40hz , thats crazy with 2 10" subs only