I had 2 SPL ML-12W's (12's with aluminum cone) in a ported box. They were nice. I had them in a 1988 Convertible Cavalier, and they were loud. I had them running off of a Lanzar 500.2 Optidrive, puttin about 1000 into the pair. I Bumped 139.8 at a local competition, which beat out my buddies 2...