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<blockquote data-quote="thndrchckn" data-source="post: 4254837" data-attributes="member: 588216">ok So i picked these up new for free from a buddy who&#039;s had them sitting in his garage. They are being run by my jl 500/1 that I have. The box they came with rattles and i want to build a new box that hopefully will make these sound a little better for two 12&quot; these are the specs that i can find about them.PECIATION:RMS:&nbsp; &nbsp;&nbsp; 700WPEAK POWER: 1400WSPL: 90dBFREQUENCY: 30Hz-1000HzThese are the current dimensions for the box they are inWxDxH: 34.5&quot;x15.5&quot;x15&quot;<a href="http://www.c4audio.net/subwoofer_endosure-cx-122.html" target="_blank">These are exactly what i have</a>I read the how to but i have no clue on how i can calculate a good box for these with the info i have. A little help is greatly appreciated. I dont want to just go buy a box from a pawn shop or something for two 12&#039;s id like to learn how to make box&#039;s for future subs.Any ideas or suggestions on what i should do to make a good ported box for these?Its going into a ford winstar minivan size honestly doesnt matter to much as its going into a van.</blockquote>

[QUOTE="thndrchckn, post: 4254837, member: 588216"] ok So i picked these up new for free from a buddy who's had them sitting in his garage. They are being run by my jl 500/1 that I have. The box they came with rattles and i want to build a new box that hopefully will make these sound a little better for two 12" these are the specs that i can find about them. PECIATION: RMS: 700W PEAK POWER: 1400W SPL: 90dB FREQUENCY: 30Hz-1000Hz These are the current dimensions for the box they are in WxDxH: 34.5"x15.5"x15" [URL="http://www.c4audio.net/subwoofer_endosure-cx-122.html"]These are exactly what i have[/URL] I read the how to but i have no clue on how i can calculate a good box for these with the info i have. A little help is greatly appreciated. I dont want to just go buy a box from a pawn shop or something for two 12's id like to learn how to make box's for future subs. Any ideas or suggestions on what i should do to make a good ported box for these? Its going into a ford winstar minivan size honestly doesnt matter to much as its going into a van. [/QUOTE]

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