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how to figure out how much port area a subwoofer needs?


caraudiolove

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Posted

This will sound douchier than I mean it to be, but I don't think those subs are worth the cost of the MDF needed

Posted

try for around 14sqin of port per cube of ported volume, with the port being as close to "square" as possible

Posted

Here's the not so simple answer... What are you tuning to? How much power are you running? And how big is the ported side?

Posted

need to be more unless your box is 2 ft^3. you want 14-16in^2 per cube so take the ports width x height total and divide it by the box volume and see what you get.

2000 Dodge Durango

Subs - (2) SKAR VVX 15 D2's

Box - 7.2 ft^3 @ 33hz, 120 in of port

Sub amp - Digital Designs M2 @ .5 ohm

Mids + Highs - PRV Audio

Mids + Highs amp - Hifonics 2000.4

Headunit - Alpine CDE-100

Equalizer - Clarion EQS746

Batteries - Mopar group 27 + (2) C&D 52ah

Wiring - 1/0 BIG 3, (2) runs 1/0

Alternator - Singer 250A

147.79 dB @ 35hz - burp - sealed on dash

147.47 dB @ 35hz - music - sealed on dash

YOUTUBE: http://www.youtube.com/user/321slapinBass/videos

SKAR_468x60.jpgDD-1.jpg

Posted

32 sqin for the pair in a bandpass.

Not enough.

And you can ignore all of the answers above that state X sqin per cuft. Port are is not related to box size [PERIOD]

Current system:

1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s

Previous systems:

2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz.

1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.

Posted

32 sqin for the pair in a bandpass.

Not enough.

And you can ignore all of the answers above that state X sqin per cuft. Port are is not related to box size [PERIOD]

Now now, lets not confuse OP TOO much haha

Posted

Lets not feed him the wrong info either :)

Current system:

1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s

Previous systems:

2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz.

1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.

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