Originally posted by 97teg
If you are going to a ported or bandpass box it really needs to be designed for you particular speaker and what you want ie where you want it to hit at. A bandpass will make your speakers REALLY efficient however it tends to be at one freq and usally doens't sound the best. You can also blow your speakers easily if not properly set up. same thing with ported. Both ported and bp are sesitive to volume chagnes so make sure you accurate if you are going to build a box. I think twice the cone area = 3 db's with the same power.
Hey Teg,
Thanks for the reply man...I have heard exactly what you are talkin' 'bout with bandpass and ported boxes----that the resonation from these things are so intense, subs can be blown one two three if too much power is fed and volume is not watched closely; do you think, though, that for what I am achieving----to be able to hear the bass frequencies from outside the vehicle and down a block---switching from my sealed enclosure with the XLC 15's to a ported or bandpass enclosure with different branded drivers and/or sizes will make a difference? I still wont drive with my back seat down, and the box will STILL be trapped in the trunk of my Accord...will switching to a ported/bandpass design give more SPL OUTSIDE of the vehicle (as SiClone suggested) as compared to the sealed setup I have in there now?