ADDAC 107 Acid Source; Eurorack module; monophonic synthesizer voice; VCO with sawtooth/triangle and square waveform and crossfader; manual controls for coarse and fine tuning; multimode filter (lowpass, bandpass, highpass) with cutoff and resonance controls; VCA with adjustable input gain and decay-envelope; CV inputs with attenuator for pitch, cutoff and decay; trigger and accent inputs; CV output for the internal AD-envelope; audio output; power consumption: 80mA (+12V) / 80mA (-12V); width: 9 HP; depth: 40mm