theres no way youre hitting 147 with a single 10. thats record breaking.
in a hatch i do 
and its not cheap stuff… its just as loud as my buddys w7 but way cleaner
meh. dunno what meter youre using but its not working right.
ever hear a w7?
my 1 sub is louder then 2 12 inch ma audio 1200xl, same as 2 15 inch mtx audio 8000s… i do car audio all day
ill even prove it to you if you want to hear it…
bring it by, i have a meter ;).