My new sub and box

Its a JL 12w6 in it's new downward firing box. my buddy built the box and he had it line-x'd.


I'll have a chance to hear it this weekend in its new location, in the passenger compartment.

Sweet box!

Is that enough room that sub's excursion?

Maybe Grant will chime in here, he's got a pic of one of those things fully extended out and it looks like it's 2 inches or so.

That looks pretty sweet.

I was about to say the same thing. I've built this type of box before for my buddies truck, and the JL sub's excursion was more than I had planned for.

That's a smooth looking box though. Very nice.

We tested it with his hertz gauge thingy and it didn't touch on a carpet sample. I though I would install some of the speaker spikes to one insure no movement and two just a little more distance between carpet and speaker.

That speaker will move .65" in one direction max, according to JL's website. So it'll probably be close. I'd space it up about another 1/2" to be safe. You don't want it hitting anything or you'll be buying a new woofer sooner than you'd like.

.65 is max.....you'll be fine with that box

What is the box made out of, and what sort of coating?

i say leave it low. more sound (resonance i think) back to the speaker to bounce of off.

Nice box. What did you pay to have it line x'd?

Thats SHARP. I'd rather go safe than sorry with the space though. Speaker Spikes seem like cheap insurance.

Box is made of MDF board and it's 3/4 thick material The Line-X guy charged $75 and its a hard sprayed on truck bed liner. The box is 300 bucks and custom built in Buford Ga by Performance Works Ph.678-714-4559. They charge $400 with a subwoofer. The box feet are 1.5 long and the excursion is .65 or a little more than a 1/2 inch. The center won't come past the foam because I am only using a 400 watt JL a1400D amp. I think if I had more power it could be a problem but I'll look this weekend.

Here is the box for those answering my problem.