Primacoustic Razorblade Quadratic Residue Diffuser - Black - 24" x 48" x 8" Trumpet Mouthpieces At the heart of the

At the heart of the RTM10 is a pure aluminum ribbon tweeter

<=250 Ohms / transformer isolated

explosive response is fast and shimmering

The Rotary is slightly different than the Monterey

Designed for stereo usage with hand matched pots to ensure both channels are identical

Primacoustic Razorblade Quadratic Residue Diffuser - Black - 24" x 48" x 8" Trumpet Mouthpieces At the heart of theThe Razorblade is a high performance quadratic residue diffuser (QRD*) based on a primitive root sequence that employs a grated array of 17 precisely calculated wells to break up and scatter acoustic energy to create a diffuse sound field. Originally developed by Schroeder, QRDs have long been considered to be one of the most effective forms of diffusion. A series of wells are mathematically arranged in such a fashion that sound waves entering the