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How to build a sub box for stock location

Old 11-25-2016, 01:03 AM
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StevanGrcic
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Default How to build a sub box for stock location










Old 11-27-2016, 11:26 PM
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StevanGrcic
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Almost done with the audio build project. Just have to put back few of the plastic panels. Designing the sub box was the most challenging part of the project. Box is made out of 0.75" thick MDF. It would have vent a lot smoother if someone had posted box plans online. Hopefully this box design comes in handy for somebody else.



Speakers are Alpine SPS-610. I have built up a pice of MDF around the speaker to eclose the speakers.




Pioneer D-9605 amp hidden under the glovebox.



Bass boost controller placed into the empty switch by teh seat heater switcher.
Old 11-28-2016, 09:43 AM
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JMII
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Nice work.

I did something similar but left all the factory metal bits in place by building a smaller box for an 8". Mine is actually attached to the factory sub bracket with the 8" firing thru the 10" hole. I only had to trim a little plastic to make it work.

I wish someone would just build a fiberglass box like this as a ready made / drop in solution. Two 8"s side-by-side with a custom cover would be perfect. Down the road I might go with a rear corner 10" box as a single 8" behind the seat is a little weak for my taste. I originally put my box loose in the hatch just for testing and it sounded better that way because the seat didn't muffle the sound. At 6 foot I need the seat almost all the way back thus it blocks the sound somewhat.
Old 11-28-2016, 01:39 PM
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dcains
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Originally Posted by JMII

I wish someone would just build a fiberglass box like this as a ready made / drop in solution. Two 8"s side-by-side with a custom cover would be perfect. Down the road I might go with a rear corner 10" box as a single 8" behind the seat is a little weak for my taste. I originally put my box loose in the hatch just for testing and it sounded better that way because the seat didn't muffle the sound. At 6 foot I need the seat almost all the way back thus it blocks the sound somewhat.
A few companies do, including SRQ in Sarasota, and they sound like @ss. Nothing but rattles. This is what I did in mine, with a single 10", and I actually think there is some sound advantage to be gained by having the woofer inside the area behind the seats.







Old 12-02-2016, 11:26 AM
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Originally Posted by dcains
A few companies do, including SRQ in Sarasota, and they sound like @ss. Nothing but rattles. This is what I did in mine, with a single 10", and I actually think there is some sound advantage to be gained by having the woofer inside the area behind the seats.
Been there, done that. Front firing is the key to stopping the rattles. I had the SRQ box with a single Polk MM 12 and I am happier with my rattle free 8". The Z is noisy as is, adding more rattles is like ->
Old 04-26-2017, 09:55 PM
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Sound system has been sounding great so far. Rattle free, clear sound and loud enough to actually hear the music while driving on the freeway with the roof down. But, I want to add another sub-woofer and amp to make it louder. So, I will be adding a 10" Alpine Type R and Hifonics Brutus BRX1116.1D amp to power it. Where should I put the second sub?
Easy option would be to replace the glove box with a sub-woofer box. But I want to keep all of the storage space if possible.
I have seen pictures of two 8" subs side by side behind the driver seat. Has any one put two 10" subs side by side behind the driver seat? It looks like there might be enough room to fit them and there is plenty of volume. But, too many curved surfaces to jam in a rectangular box.
Any info on how to build a box to fit two 10"?
Old 05-01-2017, 10:41 PM
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I am struggling to create a box for two 10” subs that can be stuffed behind the driver seat.
Is it safe to cut out this compartment divider without affecting structural rigidity too much? Or is it like a load bearing wall in a house?

Old 05-02-2017, 04:11 AM
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many people have removed that entire structure with no side affects
Old 05-02-2017, 08:13 AM
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I'm not seeing how you'll get enough internal volume for 2x 10" using just the space on one side of the car. What does the woofer manufacturer recommend? Why not just build two of the boxes like mine and give up the glove box?
Old 05-02-2017, 09:13 AM
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Atreyu'z 350
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Originally Posted by StevanGrcic
I am struggling to create a box for two 10” subs that can be stuffed behind the driver seat.
Is it safe to cut out this compartment divider without affecting structural rigidity too much? Or is it like a load bearing wall in a house?





Good job.


This might be too late, but I wonder if you can just make a single box long enough to extend to the passenger side and put a divider within the box itself to section off the subs..? Instead of making two separate boxes on each end of the car, you'll have the division within the box right behind the steel divider on the car. And, yes, don't be afraid to cut some steel.

Last edited by Atreyu'z 350; 05-03-2017 at 06:19 AM.
Old 02-01-2023, 04:59 AM
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Justang99
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Default Used your design!


Worked out great!
I was wondering if you bolted it to the car in any way

Last edited by Justang99; 02-01-2023 at 05:00 AM.
Old 02-01-2023, 08:37 AM
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Originally Posted by Justang99

Worked out great!
I was wondering if you bolted it to the car in any way
No bolts required. I just pound it into the car. It wedges in and can't be taken out.
Old 02-02-2023, 03:28 AM
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Surprised someone hasn't started selling these yet. Its pretty tempting to make, I just am not much of a wood worker..haha
Old 02-02-2023, 03:39 AM
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Justang99
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I installed it last night. Sounds great! 😵‍💫
Old 02-02-2023, 07:21 AM
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I have also designed a different box to fit into the same space to accommodate Alpine 10" Type R sub. Type S subs kept blowing up when turned up too much. New box is narrower but deeper. It leaves more usable storage space on the side.
Old 02-03-2023, 02:53 AM
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tuzzio
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Originally Posted by StevanGrcic
I have also designed a different box to fit into the same space to accommodate Alpine 10" Type R sub. Type S subs kept blowing up when turned up too much. New box is narrower but deeper. It leaves more usable storage space on the side.
Would you have any desire to build / sell one? Also, how is it rattle wise?
Old 02-03-2023, 08:01 AM
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Box doesn't rattle against the car. But, I had to go through the whole car and tighten down any sheet metal that was rattling. Starting with the license plate.
I don't have time to build and sell. I can send you drawings for the design if you are interested in building it.
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