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View Full Version : 6.0 cubic ft box, adjustments



skisloski
05-03-2007, 05:25 PM
ok i was given a design for a box from fpfuror. The box was slighty wider than i am able to fit in my trunk, i was wondering if someone could help me make an adjustment to the design:

http://i135.photobucket.com/albums/q145/rpfuror/Box%20Design/632.jpg
Slot Port X Y QTY
Top / Bottom 38.00 22.00 2
Back 38.00 19.50 1
Face 32.25 19.50 1
P side 21.25 19.50 1
O side 20.50 19.50 1
Port1 15.50 19.50 1
Port2 12.00 19.50 1

this is 6 cu/ft @ 32Hz with 97.50 sq/in of port (port with is 5")/



if i want to make it 2 inches shorter (to 36") how would i need to adjust the port to compensate and remain tuned to 32hz???

any help would be greatly appreciated

SHiZNiLTi
05-03-2007, 05:45 PM
ok i was given a design for a box from fpfuror. The box was slighty wider than i am able to fit in my trunk, i was wondering if someone could help me make an adjustment to the design:

http://i135.photobucket.com/albums/q145/rpfuror/Box%20Design/632.jpg
Slot Port X Y QTY
Top / Bottom 38.00 22.00 2
Back 38.00 19.50 1
Face 32.25 19.50 1
P side 21.25 19.50 1
O side 20.50 19.50 1
Port1 15.50 19.50 1
Port2 12.00 19.50 1

this is 6 cu/ft @ 32Hz with 97.50 sq/in of port (port with is 5")/



if i want to make it 2 inches shorter (to 36") how would i need to adjust the port to compensate and remain tuned to 32hz???

any help would be greatly appreciated

hmm that looks pretty **** close to the box that I made for my 18" BTL. Its 36" wide too. I'll check my cutout sheets.

skisloski
05-03-2007, 06:27 PM
im sorry my box needs to be changed...

i re-measured my trunk and the largest that can fit is within 34x17x22 (w h d)

if anyone could design me a box that large for a 15 L7 tuned to 32hz i would be eternally grateful to you

skisloski
05-03-2007, 06:52 PM
nevermind guys i used reaudio.com's box builder thing and that just did all the work for me, so no designs needed

Ku-sama
05-03-2007, 06:57 PM
nevermind guys i used reaudio.com's box builder thing and that just did all the work for me, so no designs needed

****, what's gonna happen to all of us box designers now???? :'( **** you RE!

skisloski
05-03-2007, 09:54 PM
just confirming that this will be allright, i think its a perfect box design, the L7 is exactly the right size for the front baffle

http://img503.imageshack.us/my.php?image=picture2ra4.png

bizzy07
05-03-2007, 10:05 PM
re's calculator doesn't account for sub displacement though

rpfuror
05-03-2007, 10:23 PM
^^ I was going to message you that same thing.

BTW, I get somewhere around the following w-w/o driver displacement.

without
Net Volume: 4.34 cu/ft
Tuning Freq: 32.56 Hz

with
Net Volume: 4.14 cu/ft
Tuning Freq: 33.34 Hz