There is a misconception about the use of bass traps. In some studios, bass traps are not necessary because of what you are using your studio as ie.., mastering. Here’s what a bass trap is. Bass traps are acoustic energy absorbers which are designed to damp low frequency sound energy with the goal of attaining a flatter low frequency (LF) room response by reducing LF resonances in rooms. So you primarily use bass traps to absorb lower frequencies that interfere with a recording. If you are not recording live instruments, a bass trap is useless.