Vintage Carver C-9 Sonic Holography Generator Made In USA Sennheiser A Zvex Sonar Tremolo Vexter

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Vintage Carver C-9 Sonic Holography Generator Made In USA Sennheiser A Zvex Sonar Tremolo VexterNotes "Sonic holography" was first incorporated in the Carver C4000 preamplifier. It enhances stereo imaging by introducing a delayed and equalized signal from the right channel at the left loudspeaker to cancel the signal from the right loudspeaker at the listener's left ear (and vice versa). The goal of sonic holography is to remove distortions in pitch caused by the doppler effect while recording and playing back audio on a sound system. While an