Also what Could I use to put behind this Mesh to hide the speaker? I was thinking something like that black filter foamy stuff they use in between Pc case and Fan? But where can I get sheets of this stuff my Speaker size on my showcase cabinet is like 10 x 36
I think the reason one might use this type of material is so that you
can see the speaker behind it.
But if you really want to cover it up, go to a fabric store and buy some sheer, black Rayon material. You want some that is so thin you can easily see light through it but can't make out details. When you put it between the grill and your speaker, it will appear solid black, but won't affect the sound.
RandyT