New Systems Instruments Quad Mid Side Quadraphonic Mid/Side Processor

QMS does quadraphonic mid–side processing. Given a left front, right front, left back, and right back signal, it produces a mid and three side signals: left–right, front–back, and cross or diagonal. Then given these latter signals, it again produces left front, right front, left back, and right back. It has intelligent normals for passthrough, -6dB lowered mid and side signals to avoid clipping, and is equally useful for stereo mid–side when quadraphonic is not available. Rather than merely creating an image of a sound, something that you passively look at, this module allows you to create a sonic texture that fills a room. Listening becomes active exploration instead of passive observation. Ambient music is all about space. But stereo can only provide a passive experience of this space. It's like there was a wonderful landscape glimpsed from a train window, and many experiments in stereo imaging attempt to reproduce the experience of being in that train, looking through that window.