View Full Version : Could someone double check me please?

05-23-2010, 09:02 PM
Ok so Im trying to build a box for a RE SX 12".

2 cubes tuned to 33hz is what Im shooting for.

So far using the 12volt.com enclosure calculator and the room Im working with, I have come up with a box that is 14" tall, 56" wide and 7" deep. That gives me a volume of 2.168

Now I also used the port calculator and came up with a port that was 4" wide, 12.5" tall and 51.228 long.

Do all these numbers add up correctly?

If I need to add more volume to the box to get me the 2 cubes the only measurement I can change is the width of the box.

Thanks in advance,

05-24-2010, 03:56 AM
RE Enclosure Calculator (http://www.reaudio.com/speaker_box/LPort_Box_Calc.html)

Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators (http://www.the12volt.com/caraudio/boxcalcs.asp#por)

05-24-2010, 08:50 AM
Thanks for posting links I've already stated I've used.

05-24-2010, 09:20 AM
your waaaayyyyyyyyyyyyyyyyyyyyyyyyyyyy off

those specs give you .133 cubes tuned to 130hz, after all displacements.

i assume your going behind the seat of a truck or something..

there is no way to get an adqaute ported box for that woofer in the enclosure size you put in the first post.

05-24-2010, 09:31 AM
****it :(

It just semed too easy haha.

Yea its going into a truck. Its a 2007 dodge ram 2500 mega cab so I have more room than a normal pickup however I guess I dont have enough.

05-24-2010, 09:48 AM
What about 60"w x 15"h x 7"d.

Port would be 13.5'h x 2"w and 27" long.


05-24-2010, 09:49 AM
actually, you could put a 4" aeroport in there firing to the side.. basically just build the box as big as you can put the sub fairly close to the opposite side of the port.

05-24-2010, 09:54 AM
Sounds like trouble to me. Ive never built any other box except slot ports. I did mess with a round port calc on the 12volt also though. Could I just use a PVC pipe as the port?

Of course this was working off the first set of measurements I posted.


05-24-2010, 09:56 AM
According to RE, the woofer can be used in 2cf @ 33Hz (optimal) or 1.5 @ 35Hz (compact install)