Bracing needed for 4 cube box?

[7ender 10+ year member]

I'm planning on running a lethal injection 15" off 600 watts in a 4ft^3 box @33hz. Dimensions of the box are 31x18x16.75.

It is using an aero port, so there is no slot port to act as a brace either. I am using a double baffle though.

What do you guys think? I would think I need some based on the size of the box, but am I really going to experience any box flex with only 600 watts to the woofer?

Thanks

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[93dakota 10+ year member]

If the box is double baffled all around then you should be fine. I have a box that is 44"x12"x22" and running 4k watts and dont really have any flex so i think you should be fine.

 

[S.B.C. 10+ year member]

If the box is double baffled all around then you should be fine. I have a box that is 44"x12"x22" and running 4k watts and dont really have any flex so i think you should be fine.

The baffle is what holds the subs, so it cant be double baffled all the way around..

It WOULD be double layered then...

 

[mazdakid 5,000+ posts]

Id brace it still. My 12 box is 26x24x11 and it flexed pretty good before bracing with 1300 watts.

 

[mlstrass 5,000+ posts]

I try to do some sort of bracing every 12-16". You could probably get away with strap bracing since it's not a high powered set up...

 

[Lakota 5,000+ posts]

Won't hurt, unless the bracing is way overdone.

 

[psych0ticnemes1 5,000+ posts]

If the box is built well you shouldn't need bracing. I have built many 4 cube enclosures for subs being powered with 3 times more power than you're running and I haven't once experienced flexing.

 

[jmanpc 5,000+ posts]

With that much power, bracing isn't absolutely necessary

 

[azimuth 5,000+ posts]

agreed. i would personally probably do a dowel rod on both perpendicular planes, centered, but it wouldn't be imperative with 600 watts.

 

[7ender 10+ year member]

hmm, so basically I could do it, but most likely wont notice any difference from leaving it out?

 

[sweenster123 10+ year member]

i have an 8 cube box thats double layered all the way around and i have some flex so id definitely brace it.