cheers sonds better now ive put sound deadning round the wheel well and box sides

Adam not really, its mostly meant for sealed boxes. Sealed boxes tend to be peaky and produce too much higher bass notes (80/90Hz) which sounds bad through subs. The wadding just cuts some of this down, it doesnt make the lows any lower. For that you need a bigger box or tune you port better...

so if i put wadding in a ported box it would make it play longer deeper notes?

so the wadding creates air resistance then??

Its used to slow down the air movement inside, like filters. Slowing it down makes it play like in a larger box. The air in a larger box takes more time to move around as its a larger area, the air inside smaller boxes moves very quickly alowing subs to produce the quick 'kick' that small sealed enclosures do...:thumbs:

When the fibres vibrate in the box the air pressure inside the box increases making the sub perform like its in a bigger box.

Some of the box makers on here could clarify it more but thats how ive understood it.

austin, i dont understand why puttin some wadding in ur sub box makes it seem bigger?? surely if ur filling ur box with wadding it will make the volume of the box smaller. plz explain.

You dont have to, its just to make the enclosure seem bigger to the sub.

dnt you hav 2 put wadding in? like foam or cotton wool like material?

Some people sound deaden the corners inside the box obviously to prevent any rattle and to also help seal the box. Kris TD sealed his with fibreglass.


As far as fibreglass insulation goes, i think you will find people are doing that to make their box seem bigger to their sub.

I heard that ppl put sound deadening material(fibreglass insulation etc) into sub boxes ,is this right and wat benefits does it have. If there are benefits wat are they, and wats the best stuff to use?