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<blockquote data-quote="goldfive" data-source="post: 7035213" data-attributes="member: 613727">um, well **I*** designed the box myself.&nbsp; I took off the plastic fascia behind my seats, covered it in blue painters tape, and laid in layers and layers of fiberglass.&nbsp; When I thought it was thick/rigid enough, I demolded it.&nbsp; The flat front face is wood, reinforced with pillars underneath to support it.&nbsp; I made a 1 cubic foot cardboard box, then filled it with foam packing peanuts-- then I poured the peanuts out of the box into the enclosure to get an idea of the interior volume of the box.&nbsp; Anyway, it started out in theory at 1cubic foot, but in practice it came in at more between .75 and .50 cu ft.Here&#039;s where I&#039;ll prob get flamed.... the sub I chose is the Soundstream Stealth 13.5&quot; sub.&nbsp; It&#039;s a super shallow mount, less than 2 inches, and it&#039;s specifically designed for a 0.5 to 1.0 cu ft box.What happened was I just didnt have time to finish the exterior of the box, to bondo it and paint it or cover it.&nbsp; So when I had my system put in by what I thought was a high-end shop, the installer felt he needed to &quot;reinforce the box with dynamat&#039; which i thought was really odd since it&#039;s for sound absorption, not reinforcing.&nbsp; And like I said, despite Soundstream recommending polyfill for use with this sub, he neglected to put in any in since &quot;the box was already small&quot;.What really bothers me is that the place had my car for over a week and never once picked up the phone and said &quot;um, we think there&#039;s a problem with your box&quot; or whatever.&nbsp; And everytime I called for an update on the system install , i was told &quot;oh it&#039;s going well&quot;.</blockquote>

[QUOTE="goldfive, post: 7035213, member: 613727"] um, well **I*** designed the box myself. I took off the plastic fascia behind my seats, covered it in blue painters tape, and laid in layers and layers of fiberglass. When I thought it was thick/rigid enough, I demolded it. The flat front face is wood, reinforced with pillars underneath to support it. I made a 1 cubic foot cardboard box, then filled it with foam packing peanuts-- then I poured the peanuts out of the box into the enclosure to get an idea of the interior volume of the box. Anyway, it started out in theory at 1cubic foot, but in practice it came in at more between .75 and .50 cu ft. Here's where I'll prob get flamed.... the sub I chose is the Soundstream Stealth 13.5" sub. It's a super shallow mount, less than 2 inches, and it's specifically designed for a 0.5 to 1.0 cu ft box. What happened was I just didnt have time to finish the exterior of the box, to bondo it and paint it or cover it. So when I had my system put in by what I thought was a high-end shop, the installer felt he needed to "reinforce the box with dynamat' which i thought was really odd since it's for sound absorption, not reinforcing. And like I said, despite Soundstream recommending polyfill for use with this sub, he neglected to put in any in since "the box was already small". What really bothers me is that the place had my car for over a week and never once picked up the phone and said "um, we think there's a problem with your box" or whatever. And everytime I called for an update on the system install , i was told "oh it's going well". [/QUOTE]

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