too large box

[ryan750]

hi, is it possible to decrease the volume of a box??? hmm. dumping some stuff inside?? or something like that. tnx,

 

[Thawach]

yes u can decrease the volume of a box and put some stuff inside.

 

[Richard Ellis]

You have got it backwards...stufing a sealed enclosure with dacron or fibreglass will INCREASE the apperant size of the box.
The system will be increased 15% for Dacron, 18% for fibreglass.
Remember what happens when you compress air??It increases in temperature..adding stuffing adds a thermal mass that the air is trying to heat up...sinking the heat...making for an Isothermal process, rather than an Adiabatic process.
Myself I use Cotton batting..which I believe is superior, but can easily mold if moisture is present.
_________________________________________Rick.....

 

[Cal Weldon]

I think he meant to put some stuff inside, not stuffing as you rightly pointed out.

Yes, put something like pieces of wood or bricks to decrease the volume.

 

[tinitus]

Or line the inside with foam with closed cells, thats not acoustic transparent

Or like Cal says, use wood
Maybe a good idea to mount pieces of wooden sticks in all inside joints, with some kind of flexible glue

Bags with dry sand has also been used

 

[Thawach]

i ever did by bracing the box a lot.

 

[Richard Ellis]

My bad...I see now. Bag-O-sand..seems most simple, can take up a lot of volume. The added weight shouldn't be too bad, might reinforce the structure somewhat.
_______________________________________________Rick...

 

[Cal Weldon]

I wonder if a bag of sand is dense enough or if it might act a bit like the fiber type stuffing?

I have always used old pieces of lumber when starting with oversized test boxes.

 

[chris661]

The best I found was empty bottles, filled with water. This was you can choose the amount you reduce it by, to the nearest 1/2 litre.

Better start drinking that Coke....

 

[gni]

Why not sand in the liter bottles? The bottles is quite creative.

I glue blocks of wood. . . precise also. . . particle board is cheap and glues well.

 

[Peter M.]

Or emty bottles with no cap on.... Seems like an easy way to make helmholtz resonators.

 

[Samuel Jayaraj]

Make a box within the box and fill the gap with whatever you want. You can do this one side at a time. Only the speaker and connector cut-outs needs some care. You will end up with an inert box. Dynaudio use this technology for all their top models.

 

[Westerp]

I usually put bigger speakers in them to get the volume down & up