I drive a 04 jeep wrangler and i want to be able to impress people with a quality sounding system that normally you wouldnt get out of a wrangler, space is a huge factor for me, so i am mounting 1 sub in a sealed box made to specs behind my rear seat. I quickly ordered 1 10" kicker l7 and i have not opened it yet, i thought it might do well in a sealed box but before i have it installed i am having second thoughts, and i need to know if i should exchange that for 1 10" infinity kappa perfect? Im not trying to go for spl but i do want it to be somewhat loud but not annoying, and have nice sq. Also, if i exchange for the infinity how big of a difference is the 10" going to be from the 12" (i will make an effort to fit the 12" if there will be a noticable differnce. Im open for other brand subs if you think there are any i should be considering.