building the box (110liters @ ported, tunig around 33Hz)
the front battery and new 50qmm cable from stock alternator (150A):
so thats all I mate to date, I just must to glue the carpet to subwoofer enclosure and some little things but it has time :-)
i was on easca dbl and i was beating around 139,3dB on 35Hz so thats is all i can do becouse the real impedance of the enclosure is around 4ohm (the speakers are wired to 1.33ohm) and the apmlifier does 1000W rms on 4ohm... (the speacers can handle around 3000W)
here is video i made one month ago, im just turn it on for the first time so it was on around 50% of volume :-)