View Full Version : bracing ur box

12-12-2004, 05:17 PM
how do u guys brace ur box triangles in corners?

12-12-2004, 07:23 PM

12-12-2004, 07:34 PM
u mean when you are laying out the pieces and trying to hold them in place so you can get them together?

12-12-2004, 07:40 PM
no. i mean brace the box from flexing, how do u guys go about it? the box is just about done it needs braced and and the top put on ands it ready for carpet.

12-12-2004, 07:41 PM
usually just a couple pieces of MDF going across the box does fairly well

12-12-2004, 10:31 PM
ya what he said. I usually see them a little behind the subs
Nice 6x9s. Are those stock 8 ohms ones? :silly:

12-13-2004, 05:31 PM
delco's are tight!! mine didnt come with them, i had the jbl's :(.......not

12-13-2004, 05:32 PM
haha i have no idea if they are 8 ohms or not
havent decided if they are coming out or staying in yet

12-13-2004, 06:16 PM
if you want maximum SPL, bracing on the outside is the way to go. for the inside, try and eliminate all corners.


12-13-2004, 06:51 PM
Threaded rod is what I use.


12-13-2004, 07:15 PM
i eliminated all corners, all 45s now, its about done, gotta find out how i wanna finish it.

12-13-2004, 07:18 PM
i use 2x4's as beams inside the box. seems to work pretty well. you also have to figure in the displacement of bracing when designing a box.

12-13-2004, 07:53 PM
had a little breathing room for bracing.

12-14-2004, 03:35 PM
not to jack this thread but since its on the same topic and i figured i would ask...sorry jtomsic

you guys got any tips about bracing a box AFTER the is has been completed. i used a brace on the inside, but my ******* forgot to glue it in, only used 1 screw for each end. its a little piece of mdf and it worked fine for a while but it loosened up now now caused a horrible sounding rattling. i thought i ****ed a sub up orsomething till i held the brace and the sound dissappeared. i tried using liquid nails on it but most of it comes out the side when it slides past the top of the box. any opinons? threaded rods sound good but can you put them on AFTER the box is already done.

once again sorry if it sounds like im tryin to jack your thread JT :(

12-14-2004, 03:38 PM
when you guys say eliminate corners do you mean where 3 pieces of wood come together? or just the simple 2x2 triangles where two pieces of mdf meet..

12-14-2004, 03:42 PM
they mean corners as in the 90 degree angle that is formed when 2 pieces of mdf are put together. they mean to cut a long triangular piece and put that into the corner. imagine this /\ is the 90 degree angle in the box (lol i know its not really 90 degree but whatever) and now imagine sticking a triangle in there. now that corner is not really a true corner anymore. its actually round looking almost.

12-14-2004, 03:51 PM
haha i have no idea if they are 8 ohms or not
havent decided if they are coming out or staying in yet

I had some piece of crap 8 ohm speakers in my car :verymad:
4x6 i the front and the smallest 6x9 speakers in the rear. They sounded horrible