Sonex™ Classic acoustical foam panels have deep anechoic wedges designed specifically to scatter, deflect and absorb sound energy in high traffic areas. Sound energy is redirected deep into the material where it is quietly converted to kinetic energy. Sonex™ has been the industry standard for recording studio design and studio acoustics for many years. it's popularity results from the patterns effectiveness and versatility. Sonex™ acoustical foam is appropriate for professional recording and broadcast studios as well as home recording studios.Sonex™ Classic Polyurethane studio foam comes in charcoal, beige or brown.