Here are some photos of the bass trap and broadband absorbers we are building. We used a thinner MDF for the surround. Almost impossible to find any 24" insulation around here so we went with 16" x 48", but we will have to build more of them.
In order to build a whole bunch of these we decided to build a template and then build a prototype to make sure we didn't have any bugs. This is what a whole bunch of traps looks like in pieces. It took us almost half a day to cut all of the pieces.
Here is the template for the traps. Each piece slides in and is held up so that it is easy to nail it all together. Each piece gets nailed together.
Once nailed together, you've got a nice neat box.
The material is held together with a small border piece that gets nailed one inch inside of the frame.
Once the unit is done we decided to paint it black. The material gets tightly stretched and stapled to the inside of the border. The insulation then snugs in nice and tight and it really looks clean. Here is a picture of the first trap up on the wall. We took all of our paint swatches into the fabric store and we were able to find this really nice sheer fabric in a huge pile of colours.
