JBL GTO1220 Car Subwoofer "1200 manual" Questions

...volks wagen 1200 model.If it is possible to dowenload repair manual for free I would be happy. thanks free downloads are rare and usually just general, better to go to a site like chilton or ...

...or series increases output. i am also running two of them on a 1200 watts amp. is that enough power? That amp does full power at 2 ohms (and is stable to 1, though not in the manual) Run it at ...