Wedge Series A series of complex shapes and sizes that achieves absorption and diffusion at the same time. Available in absorbers and durable plastic diffuser & reflector units. Acoustical Panels Acoustical panels that range in thickness' from 1" to 4" and sizes available up to 4' x 8'. Gym Crash Pads Crash pads with an incredible acoustical value. Molded Diffusers Fiberglass and plastic diffusers finished in either Guilford of Maine fabric or Gelcoated in a variety of colors. Industrial Panels Metal enclosed panels with a maximum absorption value.