Always in the first place. 2-5 days with DHL. Bluetone QRD7N Acoustic Diffuser – available in 3 colors. High quality Schroeder diffuser made of natural wood. Acoustic Diffusion Products are an excellent solution for treating distortion such as comb filtering and flutter echo in musical detail, vocal clarity and response cancellations. The QRD7N Diffusor is […]... Read More