I did look at that, I need to go down to the local dealer and give it a listen. I like lots of bass, but I like it clean and precise. Sealed box will be a must. How precise is the 12W7? I have 2 10" Punch's, and they sound good, but I listen to my buddy's system, and it can get better. With that setup I was planning on using crossovers to limit the 12's to aprox. 50Hz, then the 8's from there up to like 120. That way I isolate each sub to keep the everything clean and precise. Now I may be totally wrong on that idea. But if the 12W7 does produce the bass I like, that would be a better option.