- Waveform mixer/inverter
- Sine/Triangle/”Tits” waveform switch
- Transistor-based -2 octave suboscillator
- -1 and -2 octave suboscillator crossfade
- Suboscillator lowpass filter
- Diode limiter on output signal amplitude
- Three simultaneous outputs
Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, we did not economise on the module width, we put design and usability first. Big knobs are assigned to functions that make difference in sound. Together the Erica Black series are a range of modules that make an entire synthesizer.