its my 33hz tuned box ;-)im be scared to use anymore power,i had ringing ears,and thats with 90db main speakers!
it certainly was fun..interesting too,cabin gain curves etc,il investigate that sometime in more depth..
Il really appreciate it in my house now,lack of rattles! hehe
what would really be interesting,is if a F3 40hz basshorn for the jbl(which will fit) could produce 10db more output(which it does in the house but not necessarily in the car)
:-)