The RQS357 is the answer to a cost-effective, high quality, superb performing Quadratic Residue Diffuser. With a low frequency cutoff of 350Hz and a high frequency range extending well above 4KHz, it also outperforms most one-dimensional diffusers on the market.

The RQS357 is available in a variety of wood veneers, stains. finishes and/or solid colors. Designed for larger studios, rehearsal halls and concert spaces, the RQS357 delivers unprecedented sound diffusion over the largest range available.