Four quadrant multiplier / active DC coupled ring modulator

Ring Modulation is a classic synthesis technique that takes two source waveforms and generates a third waveform, which contains the sum and difference frequencies of the two inputs.

At audio rates, ring modulation creates a fairly inharmonic and ‘metallic’ sound. At LFO rates, ring modulation can generate interesting and complex modulation shapes.

Features:

• Active ring modulator that uses a high-quality SSI2162 VCA IC.
• DC coupled so it can be used for both CV and audio.
• Can be used with unipolar control signals as a linear VCA
• Compact size