The WAVE-Horizont bass trap is a compact corner acoustic panel designed for low-frequency absorption and sound diffusion. Ideal for recording studios, home theaters, and music rooms, it effectively reduces reverberation and standing waves. Features: Materials: Acoustic foam + Laminated MDF/plastic Size: 9x20 inches (234x500 mm), Thickness: 4 inches (100 mm) Function: Absorption (low frequencies) & diffusion NRC: 0.41 | Scattering range: 200Hz - 5000Hz Fire Class: Euroclass E Color: Black graphite foam, MDF in 10 variants Mounting Options: Walls: Double-sided adhesive tape (included) Ceiling: Construction adhesive (liquid nails) Perfect for ceiling corners or wall corners with limited space.