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<blockquote data-quote="mackin13" data-source="post: 2720486" data-attributes="member: 573274">Im building a non-traditioanl vented box for my truck. I dont have any drawings of it as of now, but i will get some CAD drawings up tomorrow. Here is my question.Subwoofer: Massive Audio CW12 (2 ohms,running ~900w rms)I originally wanted around a 2.5-3.5 ft^3 enclosure, however, after getting my outline cuts done to match my seats, i have found that my new, partially built, box will be 4.815 ft^3 after driver displacement. This volume does not account for any area that the ports might take up. So will this box just be too big for my sub? I guess i could cut the box down some as i havent put anything together yet, im just worried that i wont hit any tones over 40 hz. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gifHere are my driver parameters:QES: .733QTS: .642xmax: 20.5BL: 11.9VAS: 27.12If i were to make my box smaller, about how many ft^3 should i be shooting for? I would like to have this box tuned between 28-30 hz. Thanks</blockquote>

[QUOTE="mackin13, post: 2720486, member: 573274"] Im building a non-traditioanl vented box for my truck. I dont have any drawings of it as of now, but i will get some CAD drawings up tomorrow. Here is my question. Subwoofer: Massive Audio CW12 (2 ohms,running ~900w rms) I originally wanted around a 2.5-3.5 ft^3 enclosure, however, after getting my outline cuts done to match my seats, i have found that my new, partially built, box will be 4.815 ft^3 after driver displacement. This volume does not account for any area that the ports might take up. So will this box just be too big for my sub? I guess i could cut the box down some as i havent put anything together yet, im just worried that i wont hit any tones over 40 hz. [IMG]//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif[/IMG] Here are my driver parameters: QES: .733 QTS: .642 xmax: 20.5 BL: 11.9 VAS: 27.12 If i were to make my box smaller, about how many ft^3 should i be shooting for? I would like to have this box tuned between 28-30 hz. Thanks [/QUOTE]

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