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Audio engineering

Stereo-4

What is stereo-4? A clear definition from the audio engineering section of our glossary, with 13 related terms, tools to try and further reading.

Definition of Stereo-4

Stereo-4, also known as EV (from Electro-Voice) or EV-4, was a matrix 4-channel quadraphonic sound system developed in 1970 by Leonard Feldman and Jon Fixler.

The system was heavily promoted by RadioShack stores in the United States, and some record companies released LP albums encoded in this format. It was the first commercial quadraphonic sound system for LP records.

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What is Stereo-4?

Stereo-4, also known as EV (from Electro-Voice) or EV-4, was a matrix 4-channel quadraphonic sound system developed in 1970 by Leonard Feldman and Jon Fixler.

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