Quad VC-Polarizer
http://mutable-instruments.net/modules/blinds
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Factory-built module (not a clone). Was always racked with knurlies in a smoke-free home studio. Original owner. Works perfectly. Includes box, manual, cable and toy.Mutable Instruments BlindsMutable Instruments' Blinds is a powerful 4-channel VC signal polarizer. Every channel is comprised of a four-quadrant multiplier. The circuit acts like a VCA, but a negative control voltage results in the output being an inverted signal, instead of being silenced. The outputs are all daisy-chained, allowing adjacent channels to be mixed together. Blinds is great for using as a utility to control modulation CVs in a patch, although it can be used for much more!Blinds Features4 Channel Polarizer / Bi-polar VCADoubles as Quad Ring ModulatorAll inputs DC-coupledAll inputs handle audio-rate signalsInput impedance: 100k for all inputsCV offset range: +/- 5VGain scale: linear, a +5V CV translates to a gain of 1Gain range: +/- 2

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