A-137-1 Wave Multiplier I

Doepfer A-137-1

Module A-137-1 performs a simple but essential function: multiplying a specific portion of a saw/triangle/sine waveform to add additional harmonics while leaving the pitch untouched. Think of it as the inverse of a traditional low-pass filter—instead of removing harmonics from a complicated waveform it adds them to a simple waveform. As such, it works optimally in tandem with sine and triangle waves.

A-137-1 Features

• Input and CV level controls
• Waveform multiplication control and CV input
• Harmonics control and CV input
• Folding Level control and CV input
• Symmetry control and CV input
• Audio output