Music rooms, studios, rehearsal rooms, etc., require a surface that is efficient atabsorbing low-frequencies. ATP® proposes the SLIMBASS ANGLE® absorbent panel for the absorption oflow-frequencies.It is made of high-quality controlled-cell self-extinguishable M1 fire retardant acousticfoam with a wooden-like synthetic PVC finish exclusive membrane. It forms inside it a160 Hz closed resonance box. The SLIMBASS ANGLE® panel has a thin and elegant design, which is appropriate for the90º corners of the room's walls or ceilings.