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8-track tape Compact Cassette Magnetic tape Quadraphonic sound Tape recorder, Venerable, electronics, album, stereophonic Sound png
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Road case Quadraphonic sound 19-inch rack, 19-inch Rack, electronics, technical Standard, sound png
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Quadraphonic sound Sony Dynamic Digital Sound Surround sound Octophonic sound DTS, others, miscellaneous, angle, white png
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Microphone Ambisonics Surround sound Quadraphonic sound, stereoscopic, electronics, microphone, monochrome png
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Headphones beyerdynamic T 1 (2nd Gen) Audiophile Stereophonic sound, headphones, electronics, stereophonic Sound, sound png
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Pink Floyd Atom Heart Mother Quadraphonic sound Harvest Records Album, emi logo, album, label, roy Harper png
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Music Pink Floyd Tribute act Concert Lecco, groove music logo, text, spiral, symmetry png
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Pink Floyd Atom Heart Mother Quadraphonic sound Harvest Records Compact disc, purple parachute, png
