Erica Synths Black Double Bass

Erica Synths Black Double Bass is unique module that combines two transistor suboscillators (-1 and -2 octaves) and lowpass filter. It does not make sound on its own, but it will turn any VCO or beeper into massive bass sound with CV control over octave mix and cutoff frequency. Sync input that resets suboscillators on incoming pulse, provides even more versatility in sound design. The module can be also provide aggressive distortion, when used with percussive sounds like bassdrums.
Features
Two transistor based -1 and -2 octaves suboscillators 
Manually and CV controlled fade between suboscillators 
Manually and CV controlled lowpass VCF 
Suboscillator synchronisation input 
Individual outputs of suboscillators 
Limiter on the output to avoid clipping 
Signal Thru output 
CV level attenuators
NB! Double Bass module is not an audio source by itself and needs an audio input!

Technical specifications: 

Audio input level
-5V - +5V
CV level (full sweep)
-5V - +5V
Power consumption
+50mA, -39mA
Module width
10HP
Module depth
35mm