MATRIXSYNTH: Ekdahl Quad Massager Quadraphonic VCA / Mixer / LFO

Saturday, January 31, 2026

Ekdahl Quad Massager Quadraphonic VCA / Mixer / LFO

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These appear to be the first demos of the Ekdahl Quad Massager to be featured on the site. The first video is from 15 years ago.

Playlist:

1. Ekdahl Quadmassager in 4 input "mix" mode - Drew Daniel
The Ekdahl Quadmassager is a quadrophonic panner and so much more. This video is very STEREO, but should be in Quad, but, well, that's not very practical, is it?, so please go do a show in quad or see one...in the meantime visit us at the webpage in the video, or come see us at the True Vine Record Shop in Hampden in beautiful Baltimore, the City that Reads. The Quadmassager was designed and built by Karl Ekdahl of KNAS and a little bit by M.C. Schmidt of Matmos.
2. Knas Ekdahl Quad Massager As a CV mixer - Shirato_Noise
The output of the unpredictable blend of the four Fourses signals modulates the Denum.
3. Soundscape #034 Memories of Glaciers (Mobenthey, Mannequins, Blippoo, Knas Quad Massager) - Shirato_Noise
4. Noise Sketch #247 Clockwise (Ieaskul F. Mobenthey, Knas Quad Massager, Papa Srapa, Blippoo Box) - Shirato_Noise
5. Noise Sketch #244 Message (Ieaskul F. Mobenthey, Knas Quad Massager) - Shirato_Noise


via this eBay listing

See this previous post for specs/features.

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