AHHHH! I run from those 2 letters lol. 'Tis a very, very detailed field, and a never-ending path to achieve sonic perfection in a vehicle. That's matt and 1800's field. Nah, just off-hand though, for a nice sound, a little bass, and not much power required... JL 12w1v2. For a little more money, but awesome sonic reproduction, Obsidian Audio or an SSA Icon. The Incriminator Audio Lethal Injection is nice too. All of the subs mentioned perform very well in sealed enclosures, which will leave you plenty of trunk space, and all can get nasty off of 500 watts or so... less for the JL.