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Finally this project is done and I hope I never see any more fiberglass ever again...lol.. That stuff is so messy and itchy it will drive you crazy! But I’m ecstatic about the outcome and I have my trunk space back.. Here is the completed project..

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Nice!!!! (y) You're right... fiberglass is itchy!!! :cry:
 

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Why fiberglass, why not a sealed wood box that allows for better bass and sound quality, obviously it's more expensive but well worth it in a nice car. Both of mine were done this way and now are mass produced from the company.
 

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Here are the pics
that is a bold setup!!!! aesthetically 10+

I’m no engineer but are those subs both in phase? Thoughts from the community? Their sound waves may be canceling each other out as they are facing themselves.

If you haven’t already, for the fun and excitement of testing :) try setting one sub out of phase and see how it sounds. It would be an “isobaric” like setup. Although not quite :)

again awesome, awesome setup!
 

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Why fiberglass, why not a sealed wood box that allows for better bass and sound quality, obviously it's more expensive but well worth it in a nice car. Both of mine were done this way and now are mass produced from the company.
That looks good and definitely an easier way to add subs to the corner of the trunk.. I would honk the wood box would be much cheaper than the fiberglass, I had $150 just in materials for the fiberglass. The wood would cost $30 at most for a sheet.

I seen the wood boxes somewhere but they didn’t offer the airspace the fiberglass did due to fiberglass conforming to every curve exactly. I needed 1.1sq ft of air space and had to set the ring out a bit to obtain that needed space. And for sound quality I was very surprised that my fiberglass enclosure actually sounded better and deeper than my wood enclosure. And my wood enclosure was very sturdy with extra bracing and a double baffle. I did line the fiberglass enclosure with sound deadening material on the inside and of course filled it with Polyfil. My wood enclosure had polyfil as well but no sound deadening, I think the curves in the fiberglass enclosure added to the structural rigidity where the wood enclosure was 6 flat sides. Anyway not really sure why the fiberglass enclosure sounded better but I was very surprised, I was afraid it was going to be a trade off for trunk space but instead it was a trade up in every way for me.
 

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Discussion Starter #12
I ordered a Kicker 12” grill and did a little modification to install it on my enclosure. It went on perfect and provides full protection from items in the trunk and looks much better than the universal one I’ve seen.

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Audio Designs and custom graphics in Jacksonville florida, I saw he hasnt put it on his online store but it is saved in the CNC machine so you can call for pricing.
I really like this. How are the boxes secured in place? Are they using existing holes from the factory, or did new holes have to be drilled?
 

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I really like this. How are the boxes secured in place? Are they using existing holes from the factory, or did new holes have to be drilled?
One thing to keep in mind with the boxes you will be limited to shallow mount subwoofers. And while they have came a long way in design and function I’m not a big fan. I had a shallow mount 12” in my car as a temp solution until I could build the custom enclosure with the same amp and it just didn’t hit as hard as the standard 10” I have now. This is just an observation as there are many builds out there running SM subs and they do just fine. I bet you could buy one of these boxes and easily modify it to fit a standard sub by adding an additional baffle and maybe an extra ring. Also make sure you match the sub your going to use with the airspace in these boxes. My guess is they have somewhere near .5 sq feet of airspace.
 

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CDwalker do you know what the airspace is on these boxes by chance? Might help someone if they are thinking about trying to order one or two to plan the needed sub.
No but the company does, they were built to work for a standard 10" sub, I have high end audio mobiles that dont require much space but in order for him to save the build on the cnc machine and mass produce them he had to build to normal specs instead of mine.
 
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