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thecartel252
01-25-2009, 08:58 AM
can someone check the spec on this box for me.
its
39" x 24" x 18.5" outside dim
port
17" x 17.25" x 6 "
the speaker baffle is 1.5"
it should be
6.55 cuft net
102 sq of port
34 hz
put the program i use seem i lttle off from box pro

Mike465
01-25-2009, 09:42 AM
Real quick is this layout correct according to your measurements?

http://i341.photobucket.com/albums/o390/mike_465/gag.jpg

Mike465
01-25-2009, 09:42 AM
Internal height of box is 17inches

Mike465
01-25-2009, 10:00 AM
Ok

Total volume of enclosure.................8.024cubic feet
Volume port displaces.......................1.045cubic feet
Sub displacement..............................????????
Bracing displacement.........................????????


Box volume after all displacement.......6.979cubic feet (Does not repersent volume after sub and bracing displacement)

With your port being 17.25 inches long and with the volume of 6.979 cubic feet your box will be tuned to 39Hz.

Lets say you had a sub displacement of .3 cubic feet then your tuning would be 40Hz

If 6.55 cubic feet acounts for sub displacement and any bracing you may have then your tuning will be around 41Hz

Mike465
01-25-2009, 10:07 AM
thecartel252 you there? :D

thecartel252
01-25-2009, 10:58 AM
sorry had to run to the store for a sparil bits
speaker displacement is .5 no braceing to start with

Mike465
01-25-2009, 11:44 AM
sorry had to run to the store for a sparil bits
speaker displacement is .5 no braceing to start with

Then you are tuned to 41Hz

Mike465
01-25-2009, 11:51 AM
Keeping the same measurements of the box and if you are wanting to tune to 34Hz, the port would have to be 31.5 inches long. This would bring the volume of your box down to 5.605 cubic feet.

thecartel252
01-25-2009, 06:22 PM
thanks guess my progam is right...guess my buddy did something wrong when he did it on bassbox