Roti Pola from Noise Engineering is a compact mixer designed for mixing control voltages.
It features four channels equipped with bipolar attenuators. All channels and the mix output provide visual feedback of the polarity thanks to bi-color LEDs. It lights in green if the outgoing voltage is positive, and in red if it is negative.
When nothing is patched to the first channel, a 5 volt offset is applied, which can be attenuated and inverted using the bipolar attenuator. This is very useful for controlling other parameters or modifying CV signals at the mix output.
Power consumption: 58 mA at +12 V and 40 mA at -12 V