ported or not

Edited: 5/11/2005 4:14:35 PM by freestyliepyro

i just ordered 2 12" kicker L7's...i was wondering if a fiberglass box affects the performance of the subs at all?..plus i was wondering what size of cap i should use, and lastly i was wondering how do you hook up a second battery?....thanks in advance...sorry so many questions