New dynamat concept..

[TpaS13]

So, i was kinda thinking about ways to give me some more SPL. I thought about maybe buidling a kind of "Test box" and line the inside with dynamat. I think it could work a little and it would deff seal the box. im wondering if it would push all the air out the port better at all?? i dont know. im kind of thinking about building a new box for 12s and im trying to find somthing new.

imput please

thx,
rob

[B16ACivic]

i know it works good as an insulation and sound dampener but i dont know if will help out alot which kind of dynamat are you using. Interested to find out.

[B16ACivic]

Im think it might stop the vibration from the sub you want from bouncing off the back of the box though which in that case it wont hit as hard as a box with out it

[twofortysx]

all reg or extreme dynamat does is sound dampin
hoodliner sucks up the heat and keeps hood cool
dynaliner is used as a sound dampner/insulation ;takes place of that stock gray stuff under the carpet keeps car realy cool/sound dampins better then stock [ i love this stuff ]

dynamat works wonders i have a 240sx and they were marked down for ALOTA road noise due to the hatch .now i cant barely here it and i have a "coffie can exhaust"

tho it would seel the box and i might help a lil bit but u wouldent notice

good luck i would love to see ur box when done! :]

[POST]

dynamat and all that shit just works by adding weight and rigidity to whatever you stick it onto to reduce vibrations. Lining it inside a box won't do anything to it but just make the box more expensive and if built poorly -- less prone to vibrating itself badly..

The reason why you resin the inside of a box is to just make the thing more solid (to keep from falling apart) and [attempt] to eliminate any air from escaping through cracks and the fact that wood is porous.

I'm assuming you figured 'fiberglassing works, why not dynamat?'

edited* fiberglass for resin

[GradeA_TireFryer]

i would just coat the inside of the box in resin

[the727kid]

Go for it.

[TJElite]

Dynamic Control (makers of dynamat) used to sell a product called 'dynaply' or something like that. Basically, it was wood with dynamat in the middle. I would think that two sheets of 1/2" mdf with a layer of dampner in the middle would be a pretty good foundation for a box. Probably overkill, but good nonetheless...

Toby

[GradeA_TireFryer]

i remeber that stuff - very expensive - and i think it came in 2 x 4 sheets because of shipping size- not cheap to ship either, i still would use 3/4 mdf and coat with resin