Cashis EG8

Really? I've always stuck the sealed enclosures just because they're smaller, easier to build, and usually the bass is tighter. I don't need SPL. I just need SQ, but I'm always open to new suggestions. Let me know how the plot goes :thumbup:

Daemione

Yeah, that Nakamichi sub is going to be next to useless in a sealed half foot enclosure. Even at .85 cubic feet, the gain drops to -3 dB by 80Hz. By 30Hz, it's all the way down to -13 dB. Practically inaudible at the levels you want a subwoofer to cover.

A vented enclosure should definitely be a requirement. But even in a vented enclosure, I wasn't all that impressed with the driver. The best (reasonable) I could find used a 2 foot enclosure tuned to about 30Hz. In that box, the frequency curve stayed pretty constant at -3dB from 30-60Hz, and climbed to -2dB by 100Hz. Not ideal, but at least it was fairly flat.

I should note that I wasn't able to find parameters for BL & Le for the driver - I suppose that could have affected the output. But according to the "how-to" those specs aren't required to get a good plot. Anyway, you can take my word for it, or check it out for yourself. The software takes a few hours to figure out, but like I said, it's worth your while.

juiceweazel

hey daemione, which program are you using? i've got bass box pro 6, great for sq or spl & the program is REALLY acurate.

Takumi Fujiwara

I'm trying to build 2 boxes to fit in the rear speaker location of my 3rd gen integra. It has a depth of about 6"....

Can I get a JL 8W3 to sound ok with the space I'm limited to?

VRGNCD5

just save yourself some headaches, time and frustration, buy a custom made box.

CivicPete

the hard part is finding the optiumal dementions and then building is the easy part.. some fiber board nails caulk and u should be well on ur way... good luck!