PDA

View Full Version : subwoofer mounting position



bombsaway
03-24-2013, 06:51 PM
Where should I make my sub cut out on my box? I uploaded my design as an attachment.

bombsaway
03-25-2013, 11:07 PM
The L section of the port is 7" which, with the other dimensions, brings me to 32hz

Should I place my subwoofer at position 1, 2, or 3?

mylows10
03-25-2013, 11:21 PM
in 2

bombsaway
03-26-2013, 03:47 AM
Thanks!

mlstrass
03-26-2013, 05:57 AM
how much power will the sub be seeing? #2 (http://www.caraudio.com/forums/usertag.php?do=list&action=hash&hash=2) looks to have the most uneven loading for the rear wave. On low/med power levels that won't be an issue, on high powered burps you could start tearing cones/surrounds...

bombsaway
03-26-2013, 06:14 PM
I'll be powering a RE se-x 12 with 600rms.

Here are the box specs:
Width: 28
Height: 13.5
Depth: 15.5
Thickness: .75
Port width: 2
Port height: 12
Vb: 2.24 ft^3
Fb: 32hz
Port Length: 12.75
Port Length2: 7
Port Area: 24


At what point would issues arise? I'd like to be able to use this box for a higher grade sub in the future. Not opposed to building another, but if the mounting position is a factor I'd rather cut it where it would be most beneficial now.

Buck
03-26-2013, 06:26 PM
I say 3 but it really doesn't matter too much. Just try to put it as far away from the port as possible.

bombsaway
03-26-2013, 06:44 PM
Thanks for your input! So 2 or 3, are there pros/cons to either?

mlstrass
03-27-2013, 04:46 AM
at that power level it really shouldn't matter, so do whatever looks best to you...

Vincer77
03-27-2013, 12:31 PM
at that power level it really shouldn't matter, so do whatever looks best to you...

What are the variables that would dictate mounting location?

mlstrass
03-28-2013, 03:44 AM
What are the variables that would dictate mounting location?

At very high power levels the cone might not like the uneven loading of the back wave if part of the sub hits port wall and part hits back wall of the box. I've seen this issue on a few cars burping 5-6kw clamped per sub...