Reverberation Machine EL6910

This unit was made by Philips in Zürich for reverb reproduction in theatres. It was also used for public address system loudspeaker delay. Signal was recorded onto the revolving disk and played off the four precisely distanced play heads into amplifiers and speaker systems placed at increased distances from the sound source/microphone. The precise calculation of the delay channels would create a coincidental non echoing sound at any distance from the microphone.

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