View Full Version : Dual 15" Kicker L7 box build worklog, Pics included!

05-11-2006, 09:45 PM
Hey all,
Not my first box build but wanted to see what others think. The only thing I got left to do is carpet and caulk. Anyway heres the specs:
4.5 cu. Ft. per sub with a slot port 3.5" X 16" X 16" (also per sub)

Flushmount baffle:

Double baffle together:

Divider with port bracing and ports attached. There may be a better way of doing this but this seemed easiest for me:

Add front face and a health serving of wood glue:

With top plate (Madden added for scale):

From the back, looked kinda cool:

Almost done, first round of paint:

Finished, besides carpet:

It Fits!!!!

Like i said, the only thing left to do is capet, gonna do the trim the sides with wrap around carpet approach, hence the small nails. What do you guys think? Gonna power them with a XX-Colossus II in a Expedition.

05-11-2006, 09:51 PM
Very Nice :)

05-11-2006, 10:17 PM
Thanks Hoodkid... BTW, great avatar

05-11-2006, 11:00 PM
looks like a nice project. more pics!

05-11-2006, 11:07 PM
What else you want? Its gonna be a few weeks before the vehicle this is going in is ready but I will fully document it and update this. whole system is as follows:

2 15" L7 woofers
XX-Colossus II
XX-Jupiter for mids and highs
Pioneer Premier DEH-P780MP
20 Farad Cap
Kappa Perfect 2 ohm 6 X 8's front and rear
2 Optima red tops (would have got yellows but these were free)
and a 200 Amp alternator

05-11-2006, 11:18 PM
Creativity: 10/10
Build Quality: 10/10
Equipment: 10/10
Cuts: 10/10
Carpet: 0/10

Overall: 40/50 - 80.0% - [B-]
Augment: +10 for Madden 06
Final score: 50/50 - 100.0% [A+]

05-12-2006, 02:07 AM
Anyone got any input on how they think it should sound? never worked with L7's before

05-12-2006, 02:09 AM
1 question kinda confuses me why you would flush mount and then invert... u still have the big motor structure sticking up??

but great work none the less

05-12-2006, 02:11 AM
itll be loud....really loud...

Pop da Hatch
05-12-2006, 02:33 AM
**** - not sure that port bracing was necessary but wont hurt anything other than take up some air space.

James Bang
05-12-2006, 02:39 AM
you should have considered the port when you did the flush mount. Good job though.

05-12-2006, 02:46 AM
I don't feel like runnin the math, what's it tuned to?

Pop da Hatch
05-12-2006, 02:48 AM
Get rid of the 20 farad cap mentioned in Sig ASAP........

05-12-2006, 10:53 AM
Wow, lots of stuff to answer.

Maniac, The Inverting was to make sure it fit without setting it all the way in as it is a very tight fit and would be hard to get out, it wont be inverterted when I am finished

James, I did consider the baffles into the port length, the cutout on the inside is 14.5" + 1.5 " I gain from baffle and base plate, giving 16" total port length.

Gema, it is tuned to about 33.3 Hz

Pop, Why get rid of the cap? Just out of cureosity(sp?)?

05-12-2006, 11:45 AM
hmm wish i lived close, i have a roll of auto carpet that is 18.5' long by 6' wide extra left over from my box build.

05-12-2006, 11:58 AM
u will enjoy the bass of those bad boys. get vid asap

05-12-2006, 02:19 PM
you realy dont need to get rid of the cap. some people here dont like them since they realy dont help much or at all in a well design electrical system. but it dont hurt having them in any system in any way.

the enclosure looks greate. it'll most likely sound very good as well. video will be awsome ones you get them powered.

i do suggest brasing them long walls from the front of the enclosure to the back wall . but you can leave that for affter you have tested the system, "if" you feel some flexing from the panels.

ones again great looking enclosure. nice selection of subs too.

05-12-2006, 06:03 PM
Thank you all.. Only thing is I WISH IT WAS MINE!!! Doing this all for my friend.... One day I will replace all my stolen equipment... But as for now, I only get to play when my friends get some money and want to let me go to town. Heres the last system I did for a friend:











All my system was stolen while I was in Iraq or else I would post the pics of my wall in my Mustang (or at least the wall I used to have)

05-12-2006, 08:12 PM
Good box for the Kickers

4.5cubic ft each @ 33-34hz :thumbupw:

05-13-2006, 05:58 PM
Just wanted to let you all know, its the first time I have used that type of caulk I showed in the pictures. It works very well, I put it on yesterday and it dried very rubbery and has a good seal. I think it will be what I use from now on

05-13-2006, 07:28 PM
hmm wish i lived close, i have a roll of auto carpet that is 18.5' long by 6' wide extra left over from my box build.

Wide carpet FTW!

Used 10 yards of 80 inch wide carpet to get everything in my system covered.

05-13-2006, 07:30 PM
yeah it was a bit of an overkilll purchase but for 20$ wouldnt u buy that massive roll?

05-13-2006, 07:32 PM
yeah it was a bit of an overkilll purchase but for 20$ wouldnt u buy that massive roll?

Of course, you can't ever have enough carpet.

05-13-2006, 07:33 PM
im going to posta FS in the classifides right now...

05-13-2006, 07:43 PM
What have you powered with that XX Colossus...how do you like it..did you have to upgrade your ALT.?? ive heard that thing drains power like fat albert eats a gallon of ice cream. Are those last years models?

05-13-2006, 07:49 PM
Havent powered anything with it yet, and we are upgrading to a 200 amp alt.. Also, its the newest moddel of the Colossus that we are using, however there are new XX amps out for this year, we just went with the Colossus for the 2kw @ 4ohm mono. If the charging system holds up this should be the kinda system you can run all day long without overheating etc.

05-13-2006, 07:56 PM
are those other 3 amps in the pic this year though...like the 4406..cause I have the new one and it looks a little diff.

05-13-2006, 09:24 PM
Oh. nahh those other pics were from another system I did late last year. Those are all last years amps. They did a real good job though. I HATED that Clarion head unit though... 2v pre-outs and no sub specific outout Front / rear / non-fading