I had my dual 15 L7 kickers stolen so now im looking to upgrade. i want quality sound, good frequency response, and the ability for the subs to go as high and low as my home stereo. I was looking at JL 13w6 when i came across fi audio. i had never heard of them so i started doing some research and come to find people say they are just as good as JL for much less. so now i am in a pickel, i have a 2500 dodge ram cummins with a kicker ZX1500.1 amp, alpine X type component speakers on a MTX amp, and a pioneer head unit with 4V outs.
what will be the best choice for me? 2 more 15 kickers are around 500 bucks on craigslist, a 13w6 is around 450 on ebay, or a brand new fiQ or fi BL 18" for around 400.00 OR should i go with 2 of another sub? how close will a single JL or a single fibl/q 18" be to the dual 15's? i am currently running a 12" L7 and its just no where near enough to match the volume of my mids and highs. also taking into account that my amp is rated at 1872W date of birth.
finally, the box design... i was thinking of going sealed for the sound quality but fibl's say ported only. I myself have used all ported speakers for years and my home theater sounds amazing with all ported floor standing speakers and a 15" ported sub that has better frequency response than any car sub ive ever had. so how much does this sealed vs ported really matter?
