So like the title says, I'm thinking about buying some kicker solobaric L7's 15" dual 4ohm voice coils. The seller is selling 2 of them for $300 incl grills + however much shipping is. I have a 3kgt and like listening to rap/rock/techno. Would 1 of them be enough or should I go for both? I originally wanted 2 12" subs but I've heard a lot of good things about solobarics. I'm not a crazy audiophile or anything, I just want to be able to cruise down the street with my car bumpin and have people starin - but at the same time I'm not tryin to break my ear drums or anything.