O-410 Sub oscillator module for Eurorack / Doepfer A100 system.

From the top down:
Audio input jack
Audio output jack (mult)
Wave select knob + LED
Button for bank sel. (short press) or phase sel. (long press) + LEDs
Tone control knob (sub)
Balance knob (orig/sub)
Output jack

O-410 is sub oscillator/frequency divider with selectable waves with different content of harmonics. It contains 20 waveshapes (two banks A/B x 10 waves) one or two octaves down or fifths down. Tone control knob affects sharpness of divided signal leaving original input signal unaffected. Balance knob sets mix ratio between original input signal and divided wave. Last three waves in each bank are “fifth down” (if input is “C”, divided output is lower “F”). First wave in bank A (LED off) is simple squarer.

Width: 4TE/ 4HP/ 20mm
Depth: 45mm /1,8″ max.
Current: 25mA
Power cable included

Double check power connection before powering your system please.
„Red strip“ means -12V connector side in Eurorack standards.
In some power distribution systems connector key can be reverted.
In this case cut connector key and plug power connector right way (with respect to red strip) or use different power cable appropriate to your power system.