dynamat the inside of a box?

[the mange 1]

i have a 2.3 cube ported box made of one layer of 3/4 mdf. it has no leaks, but i notice that the box vibrates a fair amount. would it make sense to dynamat the inside? or would this kill my sq?

[ShaneSauce 2]

I have never heard of someone dynamatting the inside of the box.

Maybe try a new box with a double baffle if you don't have one already.

[RobClay 20]

im pretty sure it wont help it at all.

[lithium 358]

add some bracing to the box. another baffle maybe

[topgun 262]

Physical bracing will be more efficient. A cheap way to do bracing is use all thread, or use wood bracing, your pick.

[Installer4life 0]

Ihave seen dynamat sandwiched between two pieces of MDF but that idea didn't stay around to long. Bracing is the best thing.

[akjay907 0]

What do you mean? flexing?

[buggsson 0]

Ihave seen dynamat sandwiched between two pieces of MDF but that idea didn't stay around to long. Bracing is the best thing.

That method is still going strong, it is a kind of advanced building method called "constrained layer dampening" CLD, something, I've got teflon memory these days. You can also use sand, liquid nails etc, etc between the layers. Do a search for "Tangen mighty sub" I hope will do the trick, it's famous in DIY circles made in Norway based on a single JBL.

I cannot say though if CLD is better or on par with bracing, so I would as others have done, recommend bracing, shelf bracing.

Edited December 12, 2008 by buggsson