Dynamat inside of box?

[RFRChris]

I'm about to start a new box and was thinking of Dynamating the inside.

Any advantages/disadvantages?

Thanks, Chris

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[jco1385 5,000+ posts]

why would you do that?

 

[Funky Pups 10+ year member]

i would like to know as well

 

[drpeeb 10+ year member]

If you use sufficient box material, aka 3/4" MDF, the deadener won't be noticeable ... It will be totally wasted.

 

[terra 5,000+ posts]

It'll definitely stop the sheet metal in your box from rattling and sounding terrible..

Oh wait, we build boxes out of MDF.

 

[James Bang 5,000+ posts]

Waste of money like multiple layers of deadening that gets promoted around these corners.

 

[JimJ 5,000+ posts]

There's no point.

If you're worried about panel flex, simply brace perpendicular to the unbraced sides.

 

[RFRChris]

I was reading that back-wave distortion occurs when sound waves generated from the rear of a speaker bounce back to the speaker cone, interfering with the speaker's operation and causing distortion. By placing Dynamat on the inside of the box it would absorb, diffuse, and weaken rear waves, eliminating distortion. I just wanted to get someone elses opinion on the matter.

 

[AllenH427 10+ year member]

I was reading that back-wave distortion occurs when sound waves generated from the rear of a speaker bounce back to the speaker cone, interfering with the speaker's operation and causing distortion. By placing Dynamat on the inside of the box it would absorb, diffuse, and weaken rear waves, eliminating distortion. I just wanted to get someone elses opinion on the matter.

Wouldn't it make it worse then?

 

[power-fanatic07 5,000+ posts]

Yea let's weaken the waves maybe it won't be so loud

 

[xNaStYx 10+ year member]

Yea let's weaken the waves maybe it won't be so loud

Great idea!

 

[grimreper912003 5,000+ posts]

I was reading that back-wave distortion occurs when sound waves generated from the rear of a speaker bounce back to the speaker cone, interfering with the speaker's operation and causing distortion. By placing Dynamat on the inside of the box it would absorb, diffuse, and weaken rear waves, eliminating distortion. I just wanted to get someone elses opinion on the matter.

you would need deflex or w.e its called. Or the egg carton looking foam.

 

[ejschultz 10+ year member]

What about using a box fill material? That's supposed to give you a more even response and help with the backwaves causing distortion. Take this as both a question and a suggestion. I'm tying to learn something here too.