I prefer the tuning because its adds quite a bit of spl over the sealed from 12hz-50hz and still in a small enclosure type. The 15hz tuning adds a lot from 11-40hz over the sealed but from 22hz and up the sealed wins. And thats where most of the bass is in movies.Chrapladm - Do you prefer the 18hz tuning because of enclosure size?
If you have room and more money to spend then build a ported cabinet using PR's. You will need two PR's though. If you want to stay small then shoot for a simple 18-20hz tune and around 6cuft or 24" cube cabinet. PR's wont make chuffing sounds so finding a port that works with this woofer wont be a problem.:TI'm a newbie when it comes to diy speakers, In the past I've always bought the speakers already made, But I'm really more of a do it your self-er kind of guy. So I decided to take on this project, and am looking to learn as much as I can before I get started. I would like to go with a small to medium size cabinet for the 5400. but I wasn't sure if I should use radiators because my definitive's have'em... I'm not sure if Ive ever experienced single digits myself. I just thought lower is better when it come to movies and listening to music. I'm worried that with out the radiators the woofer will be overworking in a small enclosure because of air pressure??? and it seem like at least one radiator would help with that??? but I don't want to give up the lows... Thank for your input chrapladm