Super chunks traps are very effective in our studio. When it´s needed a great amount of low-frequency absorption in a room we have to put very efficient traps on corners. This usually occurs on smaller rooms.
Super chunks or Tri-corners
Filling the corners with fiberglass or rock wool (60kg/m3) we will catch more low frequencies. Cutting triangles from floor to ceiling it´s the best option. You can put small slats screwed to walls for fixing the fiber and staple the fabric.
If you don´t want to absorb high frequencies put slats on the face side. Another option it´s placing a limp mass layer, this method improves the low bass absorption. Here you will learn all about Tim´s limp mass bass absorbers.
A third option it´s making low-frequency resonators, these traps absorb only a target of frequencies. Usually, they are tuned for the low bass octave as they are very effective. Fluffy fiber works better in this type of modules (20kg/m3). I use these traps in my studio.
You can make them with MDF fiber-board or gypsum-board. Usually measures 60cm x 45cm. Sealing the perforated panel to the walls will perform better. This great calculator will help you for tuning your traps: Acoustic modeling.
Once your room it´s controlled with a good response and your low frequencies treated let´s see the reverberation of your room, RT60.