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Old 8th September 2014, 07:34 AM   #1
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Default Sub woofer help

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I am thinking about picking this sub up for $40 what do you guys think give me your options

Thanks
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Old 8th September 2014, 10:42 AM   #2
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$40.00, not bad. As long as it's tuned correctly and sounds good to you. You could hardly build the box for that. If you don't like it, you could always sell it.
Good luck.
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Old 8th September 2014, 10:52 AM   #3
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I am kinda a noob but how to you (tune) it ?
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Old 8th September 2014, 01:07 PM   #4
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It should be tuned for the sub already. They are usually sold this way. Size of box and port tubes cut to length is how it's tuned.
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Old 8th September 2014, 11:48 PM   #5
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Is there a site that I can use as a guide just in case it is not tuned correctly or if I change the sub
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Old 9th September 2014, 12:10 AM   #6
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The Subwoofer DIY Page - 4th Order Bandpass Systems

Lots more info on the Web if you search for it.
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Old 9th September 2014, 01:15 AM   #7
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To determine if it's properly tuned requires that you define what you want. Many of these pre-fab 4th order enclosures are designed to produce significant output in a very narrow band. This can make them impressive in that narrow band but can also make for a 'one-note' system.

After you decide what you want, you have to know what your vehicle's transfer function is and then tune the enclosure to provide what you want.

Generally, it's difficult to change the response of a pre-fab enclosure because the two halves of the enclosure have to be designed to work together.
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