Doepfer A-137-2 Wave Multiplier 2 radial The pedal was designed with

The pedal was designed with guitar in mind

and PGX Digital wireless systems

and breath sounds

A switchable low-frequency roll-off reduces pickup of undesired ambient noise

16 mic or line inputs plus 2 dual stereo inputs

Doepfer A-137-2 Wave Multiplier 2 radial The pedal was designed withModule A 137 2 is another version of a wave multiplier. In contrast to the A 137 1 Wavemultiplier I the A 137 2 generates four phase shifted copies of a VCO signal applied to the audio input. The four shifted signals are added to the original signal to obtain a fat sound similar to five independent VCOs. The phase shifting is made by a simple circuit that works only for sloped signals like sawtooth, triangle or sine, but not for rectangles or pulses