The Knas Quad Massager mixes sound with a joystick

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Originally published at: The Knas Quad Massager mixes sound with a joystick | Boing Boing

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My Record Collection: Quadraphonic Albums (Part 1)

My Record Collection: Quadraphonic Albums Part 2

Vintage 1970s Stereo Commercial (American Sound, 1975)

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Truly awesome quad receiver: Sansui QRX-3500
Sported its own directional joystick!

Sansui QRX-3500 4 Channel Quadraphonic Receiver In Operation !SOLD!