I have a sealed fiberglass enclosure, .65 cf, which goes in the foot well of the passenger area of my 996 911 Convertable. It takes a 10" sub. What would you recommend for a good SQ sub powered by ~400 watts from an Alpine PDX-5?
I'm not sure about the mounting depth on the JL and I'm too lazy to look it up right now, but you could get a Rockford Fosgate P3S that would fit in there and does about 300 watts rms.