box design checked

[thecartel252 10+ year member]

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

Click to read more...

 

[Mike465 10+ year member]

Real quick is this layout correct according to your measurements?

 

[Mike465 10+ year member]

Internal height of box is 17inches

 

[Mike465 10+ year member]

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 10+ year member]

thecartel252 you there? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[thecartel252 10+ year member]

sorry had to run to the store for a sparil bits

speaker displacement is .5 no braceing to start with

 

[Mike465 10+ year member]

sorry had to run to the store for a sparil bitsspeaker displacement is .5 no braceing to start with

Then you are tuned to 41Hz

 

[Mike465 10+ year member]

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 10+ year member]

thanks guess my progam is right...guess my buddy did something wrong when he did it on bassbox