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Reload Thread: port lenght? (round port) 7.5 cubic fett

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    audio hoe's Avatar
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    port lenght? (round port) 7.5 cubic fett

    i just finsihed building a box for a 15" brahma. the internal volume is exactly 7.5 cubic feet (dont worry about sub displacment, mounting it magnet out). can sombody figure out the lenght of the port(s) for me please. ill be usuing round port(s), 4" in diameter. i need it tuned to about 30htz and have a good amount of port area.

    thanks ALOT

    Joe







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    Re: port lenght? (round port) 7.5 cubic fett

    Quote Originally Posted by audio hoe
    i just finsihed building a box for a 15" brahma. the internal volume is exactly 7.5 cubic feet (dont worry about sub displacment, mounting it magnet out). can sombody figure out the lenght of the port(s) for me please. ill be usuing round port(s), 4" in diameter. i need it tuned to about 30htz and have a good amount of port area.

    thanks ALOT

    Joe
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