i got my custom hybrid tc9 12" in 2.5 at 32-33(around there) termlabed. Running off a directed 1500d (1100 at 1 ohm).105 amp alternator big 3 4 gauge, corsica. The sub facing cabin is louder by 3 decibels.. its prolly because theres no lock on my trunk(big hole) and the trunk lid is a little open. Hit 138 at 38 hertz. Supposedly though, he says his mic(dont remember exactly how he said it) only measures pressure level or something. He said if i were to go to dukes across the street it would read 5-6 db's higher so 143-144.. so im not sure which one is real or not. but all i know is it was annoying my ears a good bit.. never cranked it like that before. we opened the window a little where the termlab mic/termlab was and it helped out 1 db. What ya think
i am sure that any quality sub will handle more than its rated power if not double or more. as long as u don't do anything stupid. who ever has the termlab is the real score... nothing else counts. i went to a place and was reading in the 160s... but on a tl i get 156 on a good day