View Full Version : Different style box build for my buddy

01 S 10
06-17-2008, 12:10 AM
I'm "helping" my buddy with his box, even tho we are using most of my tools and my garage and electricity but o well. He's got a ~96 Buick Century that is literally falling apart from the system AND accidents... :rolleyes:

He doesn't listen to me when he buys his equipment, so he bought a SPL 5500D amp, that supposedly puts out 3200rms @ 1 (4 awg power/ground) :rolleyes: and he bought two SPL SPLW15"s that are.. well... they dont sound that good.

Here is a pic of his last box that i built, 5.0cf tuned to 30hz, was originally for his Type R 12"s (which were loud as **** in it, he should of kept them)... its kinda small for the 15"s


and here are some of the build were doing now, it will be right around 10 cubes ported probably using 4 4" PVC ports. The subs will be firing into the cabin. apparently he doesnt want the back seat at all anymore, but i have other ideas, pics will follow when that happens...

This box will be built in two parts to fit better in the trunk, they will be siliconed and bolted together when he puts both boxes in the trunk. only leaving about 2 - 3" of MDF on the inside for the bolts/silicone to connect the boxes.

back half of new box:



pic of empty trunk (with my **** truck to the left :cool: )

plexi for the back part of box




01 S 10
06-17-2008, 12:11 AM



this is the cut through that will go into the front half of box:



painted with something similar to Killz to prime and seal:




the plexi will be bolted on the inside of the MDF with probably neons or some ***** in it... it originally came from a sh!tty band-pass box that he had.

01 S 10
06-17-2008, 12:13 AM
rough cuts for now, i tried to sand them down after he made it look like a wave with the jig saw... but its his not mine, i would have to make mine almost perfect. it should come out well though.

let me know what you think / or suggestions, i have only built a hand full of boxes myself, this is his second or third box, so we are not pro's

06-17-2008, 12:17 AM
I think his exhaust is pointing the wrong direction

01 S 10
06-17-2008, 12:19 AM
I think his exhaust is pointing the wrong direction

yeah... this car sounds like hell coming down the road, straight pipe with only a cherry bomb (basically a straight pipe) all the way to the back. loud as hell.

this is a guy coming from imports that thinks crooked exhaust tips are teh coolness.

06-17-2008, 12:20 AM

06-17-2008, 04:50 PM
goodluck with equipment, I hope that it gets louder than the type Rrrrghs.

01 S 10
06-17-2008, 11:27 PM
little more work done tonight...

mounted the plexi loctite'd and siliconed


trying out some light, just a basic red neon, might change the color later...


test fitting the front box.. still need to mount the braces and cut through to the back box



port material... 4" (x4)


9.75 cubes before port displacement is figured out.

06-18-2008, 01:46 PM
Seems like kind of a waste to lose your backseats in a "luxury" car for only 10 cubes.... and he wont even have a trunk anymore..... if I was going that far, I would have spent an extra couple hundred and bought some quality equipment to atleast make it worth while to lose all that space

build quality looks nice though, good job on that

01 S 10
06-18-2008, 11:03 PM
well, when the SPL's sound like *****, i'll convince him to buy something better, after all this work in this box... it will NOT go to waste. I have ideas for the backseat, it should come out pretty well. Got a little more done tonight, heres some pics:




here is one of the SPL's:








01 S 10
06-18-2008, 11:13 PM
Once the box is done, i want to make a trim panel that covers the front of the box and goes all the way across the back of the car like the original seat... and maybe put padding on the panel and cover it like a seat. but it will have two subs cut out in the middle.. kinda make it look stock but with the sub cut outs. we will probably use the stock rear deck cover for the upper part.

one question.. does anyone have any advise for port placement? I'm wanting to put all four 4" ports firing straight up through the back dash towards the back window (through the stock 6x9 holes already there. will this sound OK?

01 S 10
06-20-2008, 01:38 AM
mostly finished with the box now.. just need to let the loc-tite and silicone dry for the night, and install the amp tomorrow and tune...

heres some pics:






Box lit up with red and blue neons before the subs were installed:


pics of the ports coming up through the back dash... a lot brighter than i anticipated:




01 S 10
06-20-2008, 01:39 AM
Subs installed, random pics of the front and back of box.





06-20-2008, 03:44 AM
No disrespect intended, but your a very good friend. Thats alot of work for some crappy equiptment.

But, at least he likes it, its cool I guess...

06-20-2008, 10:28 AM
whats so bad bout SPL subs? They get loud at least...especially that llne.

Great build very nice

I wouldn't leave it un-carpeted though if you were planning on it.

01 S 10
06-20-2008, 12:46 PM
He plans on finishing it with carpet probably. I can't hate on these subs, they get pretty loud for what they are... but one of them already sounded like the VC was scraping the motor on the inside or something, still works fine though.

He doesnt plan on building another box for this car.. ever... and i agree. this one was a b!tch. Hopefully in the future Ill try to get him to put some BTL's in there or something :D

thanks for the comments! we worked really hard, and we can both count on one hand the number of boxes we have built individually, not too bad for NOOB's lol

JL Audio
06-20-2008, 12:49 PM
I will have to say, I like the build overall, some time was spent making it and no one can hate on that :)..

choice of woofers isn't terrible though.. ummm

they have a 4" coil least..lol but for the price, they seem fine. i'd take one if someone was giving me it, lol.

01 S 10
06-21-2008, 01:09 AM
I will have to say, I like the build overall, some time was spent making it and no one can hate on that :)..

choice of woofers isn't terrible though.. ummm

they have a 4" coil least..lol but for the price, they seem fine. i'd take one if someone was giving me it, lol.

haha i feel the same way, we worked our ***'s off after actual work for 4 days...

Just got everything wired up tonight and it was suprising... louder than i thought it would be, i am really impressed with the box and the 4 4" ports, seems like verrry accurate tuning and sounds really good on 34hz - 40hz (box is tuned to 34hz). This was my first time with round ports. I might build my next box for my truck with round/aero's. sound quality on these SPL's... well :crap: like you would expect. good 'nuff for him, so i am happy...

thanks guys for the comments

06-21-2008, 03:04 AM
good work on the box, nvr seen the whole 2 piece option like that b4....nonetheless u should talk him into some better equipment w/e those spl's burn up

06-21-2008, 03:32 AM
you don't use many screws at all

06-21-2008, 03:54 AM
Too many screws is a bad thing :fyi:

The glue joint is the bond


Thats how my backseat turned out ^^^ Might give you some ideas on covering it and making it pretty. threads in my sig

06-21-2008, 09:26 AM
Like the install, just don't like having no back seat, but been there done that, so I understand........just older now and need it, lol!

Also I missed the exhaust pic earlier. That muffler angled like that on a Century makes baby Jesus cry! Need to tell him to nix say on the eicks say on that ****!

01 S 10
06-21-2008, 11:18 AM
Like the install, just don't like having no back seat, but been there done that, so I understand........just older now and need it, lol!

Also I missed the exhaust pic earlier. That muffler angled like that on a Century makes baby Jesus cry! Need to tell him to nix say on the eicks say on that ****!

lol about the exhaust, its way worse in person because it doesnt just LOOK bad, you should HEAR it :laugh:

I would have done a couple things differently leaving me an option to make a custom back seat, but the amp is in the way now too... o well, not mine!

06-21-2008, 05:22 PM
hmmm i dont know what to say really

01 S 10
06-22-2008, 04:49 PM
hmmm i dont know what to say really

lol.. is that good or bad? do you like/dislike the box? or equipment?

you wont hurt my feelings, its not my box...

06-22-2008, 05:02 PM
i think that the box design isnt the greatest