View Full Version : need help with old school earthuake subwoofer

12-29-2006, 12:00 PM
hi i got a old subwoofer from a friend dont real know alot about it but the moble is LS-18dv
i want to use this sub for my home system can u help me with a box spec to do the job
help please
this will be my first box build so be kind to me :)

12-29-2006, 06:02 PM
5 cuft tuned to 30hz looks pretty good, using a 6'' dia port 12'' long.

01-02-2007, 12:58 PM
5 cuft tuned to 30hz looks pretty good, using a 6'' dia port 12'' long.
am hi but 6'' dia means ???
i am thinkin this is a aero port u talkin about right
i want a slot port the regtanglur one

what dememsions make a 5cuft internal size
l x h x h
this is my first time please

01-02-2007, 07:10 PM
It would be something like this:

Width= 24.00 inches
Height= 24.00 inches
Depth= 25.50 inches
Port Length= 36.73 inches
Driver Volume= 5.02 cu/ft
Slot Vent Width: 3.25 inches
Wood Thickness: 0.75 inches

That would be something like 5 cu/ft @ 30Hz with a slot port.

01-03-2007, 04:44 PM
so port would be 3.25wx24h
right guys

01-03-2007, 07:00 PM
no you have to subtract the wood so the height would be 22.50"

01-05-2007, 11:12 AM
ok thanks very much

01-16-2007, 12:14 PM
hi i got a 4inch airo(rockford) port from a friend i built the 5 cube box i need to know what lenght to cut the port help :) :)

01-16-2007, 12:54 PM
2 x 12"
1 x 4.5"

01-16-2007, 01:39 PM
If you're going to be playing movies on this home setup, then 30hz is going to sound like ***.

01-19-2007, 11:38 AM
2 x 12"
1 x 4.5"

again i am very sorry i am lost
i dont know what this mean
am 4 inches wide in diameter
but how long to cut the 4 port dept:) :)

01-19-2007, 11:42 AM
1 x 4" port = 4.5"

if the rest of the specs are still the same

01-20-2007, 11:38 AM
ok guys i will go with the slot port ok thanks alot
1x4 port =4.5 right
does 4.5 represents the dept of the port (lengh)

02-06-2007, 10:02 AM
thanks the sub in this box works sweet