ARC 300W MLS 3D Diffusion & Absorption Panel High-performing bass traps that effectively damps low frequencies Choose a bass trap that can meet your acoustical needs while combining durability and appeal in one. The Arc 300W Bass Trap is designed to fit into the corners of any space and comes in 6’ height. Its 90 degree curve diffusing surface has a uniquely designed cavity inside that absorbs low frequencies as well. The Arc 300W’s cavity also does the work of scattering excess sound energy in the corners of your room for a more balanced listening environment. It’s ideal for use in hi-fi rooms, studios, entertainment rooms, live concerts and even for acoustic decoration purposes.