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SM12 - Universal Buffered CV & Audio Mixer/ Multiplie
The SM12 is a mixer and multiplie in one "box". Above is the 3 to 1, 6 to 1 mixer section. Bottom is the multiplie section, 1 to 3, 1 to 6. The Multiplie section has a two-color indication of signal polarity. Mixer and multiplie sections can be connected in series. Each mixer input has its own buffer, just like each multiplie output.