Quote:
|
Originally Posted by af_analog II understand the theory of having dead space behind the corner traps, but a lot of the DIY corner traps I see are mounted so that they fill the entire corner with rockwool...is this wrong? CHEERZ |
It's not that it's wrong, it's just that the energy of the wave as it hits the barrier (wall) is so low that it's a waste of money to put the material in that space. Keep that inside corner space open, just as you would with the trap spaced out from the wall.
Two inches is not enough for broadband - use four inches, and hang them four inches out from the wall.
Sand won't work for a trap because it's too dense.
As far as density goes, you can use anything up to 8 pounds/cu.ft. You can use ten, but right about at ten, you're starting to get into reflection of the higher frequencies rather than absorption, which will still be good for low end, but will mess up the idea of a broadband trap. (Which is what these are - they affect the entire audible range, not just bass. So though we call them "bass traps", they're still broadband traps.)
-Craig