Depends on what type of music and what type of bass your looking for. I had 2 of those on a JL 500/1 in a sealed box and they pounded real hard. If your looking for tight bass go with a sealed box, if your looking for more of a rumbling go with a ported box. Also, if you need a box try Bassman3's website: http://www.dldesignz.com Really nice guy, awesome prices and some of the best work I've seen.