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Enclosure Design & Construction
Too small enclosure but very powerful 21” sub
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<blockquote data-quote="mat3833" data-source="post: 8791130" data-attributes="member: 587645"><p>This is roughly the size of a 14 cubic foot enclosure. I'm still doing the math for internal volume, but it should be somewhere at 15.4 cubic feet. This is for 2 18" drivers on 3k.</p><p></p><p>Internal dimensions are as follows:</p><p>20t</p><p>48w</p><p>20 deep on the bottom and 31 deep on the top. </p><p></p><p>[ATTACH=full]38699[/ATTACH]</p><p></p><p>Putting a sub in HALF of its recommended volume is bad in many ways. I'm not going to get into specifics, but a horrible generalization is this: the smaller the box, the higher the resonant frequency is and the louder the sub will play at that specific frequency. You will end up with a very peaky sub playing 50hz and up. Yes, you can throw a ton of power at it, and add a bunch of EQ to make it play lower and more flat, but it's not worth it. Pick up a decent 15 or pair of 15's and be done.</p><p></p><p>If you are going to ask a question on a forum, listen to the responses and don't be a dick. Most of us have been doing this for 10+ years and actually know what we are talking about. You want to waste the money on the sub, go for it. Its not my money. </p><p></p><p>Matt</p></blockquote><p></p>
[QUOTE="mat3833, post: 8791130, member: 587645"] This is roughly the size of a 14 cubic foot enclosure. I'm still doing the math for internal volume, but it should be somewhere at 15.4 cubic feet. This is for 2 18" drivers on 3k. Internal dimensions are as follows: 20t 48w 20 deep on the bottom and 31 deep on the top. [ATTACH=full]38699[/ATTACH] Putting a sub in HALF of its recommended volume is bad in many ways. I'm not going to get into specifics, but a horrible generalization is this: the smaller the box, the higher the resonant frequency is and the louder the sub will play at that specific frequency. You will end up with a very peaky sub playing 50hz and up. Yes, you can throw a ton of power at it, and add a bunch of EQ to make it play lower and more flat, but it's not worth it. Pick up a decent 15 or pair of 15's and be done. If you are going to ask a question on a forum, listen to the responses and don't be a dick. Most of us have been doing this for 10+ years and actually know what we are talking about. You want to waste the money on the sub, go for it. Its not my money. Matt [/QUOTE]
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Enclosure Design & Construction
Too small enclosure but very powerful 21” sub
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