Number crunching
03-25-2010, 07:55 PM
#1
0 Watt CAFz'r
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Join Date: Sep 2008
Posts: 9
Number crunching
Looking to design and build a new sub box for my gimpy old 12's. Numbers are looking like 30W X 17L X 21H outside dimensions (3/4 MDF). Slot ported at 17 X 4.5 X 22.75 (Internal dimensions).
Those numbers give me an internal of 4ish ft^3 volume for the box, and a tuning of 39hz.
Anyone wanna crunch the numbers fast for me and see if I still got it? =)
Those numbers give me an internal of 4ish ft^3 volume for the box, and a tuning of 39hz.
Anyone wanna crunch the numbers fast for me and see if I still got it? =)
03-26-2010, 12:09 AM
#2
Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators i dunno if the link will work i never done it before..but from what i was getting it would be tuned to 41hz i think
03-26-2010, 04:46 PM
#4
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Join Date: Sep 2008
Posts: 9
the port will be 17" X 4.5" internal dimensions
slot port along the top... just realized I did make a mistake, going to have to be 30 X 18.5 X 21, port going along the 18.5 side (for 17") and down the 21. Subs up, port up ( It's in a hatch, but not enough room for a port back)
slot port along the top... just realized I did make a mistake, going to have to be 30 X 18.5 X 21, port going along the 18.5 side (for 17") and down the 21. Subs up, port up ( It's in a hatch, but not enough room for a port back)
Last edited by Mexar; 03-26-2010 at 04:53 PM.
03-31-2010, 05:14 AM
#6
the port will be 17" X 4.5" internal dimensions
slot port along the top... just realized I did make a mistake, going to have to be 30 X 18.5 X 21, port going along the 18.5 side (for 17") and down the 21. Subs up, port up ( It's in a hatch, but not enough room for a port back)
slot port along the top... just realized I did make a mistake, going to have to be 30 X 18.5 X 21, port going along the 18.5 side (for 17") and down the 21. Subs up, port up ( It's in a hatch, but not enough room for a port back)
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