4-12" L7 Enclosure??

[KurtisLow 10+ year member]

A co-worker wants a box built for the back of his lincoln town car. I'm not exactly sure what year it is but it's fairly new and, as many of you know, it has a very large trunk. He recently purchased 4 12" Kicker L7s and wants a ported box. I've built a few boxes but I've never dealt w/ a ported one. Is there anyone on here who could recommend some dimensions and port designs or a website that could give me some dimensions or is more info about the trunk space needed?

Thanks,

KurtisLow

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[KurtisLow 10+ year member]

I checked Kicker's website and they have some very detailed descriptions for building enclosures but the more i think about it, that trunk is pretty big so i'm not gonna worry about making the box by a mathematical equation. If i give those subs enough "breathing room", they're gonna pound. The site recommended using "Titebond" wood glue to bond the joints.....has anyone used this glue or had luck w/ another brand to glue the joints with? I've never glued joints in a box before. I normally just pre-drill and countersink holes and use coarse thread wood screws and seal it inside and out. I'll be using 3/4" MDF. Any input would be appreciated.

 

[skateboardkid 10+ year member]

Just make sure you brace it it with 2x4 or dowels or threaded rod. If they are gonna be underpowered you can up the box size a little to increase efficiency. Other wise go nutz!

 

[KurtisLow 10+ year member]

Yea, I'm gonna run some braces inside the box for sure. As for the subs being "underpowered"... he bought a HiFonics 2600w Brutus Super Class D Monoblock Amp to run all 4 L7s. I figured 2-500w or 1000w Class D monos would've done better but i couldn't say for sure. I'm not the smartest guy in the world when it comes to speaker systems which is exactly why i ask so many questions on here.