This Module is discontinued. See zSUM-1A for current version.

Summing unity mixer/inverter in 3hp for eurorack.

Another “little friend” utility module.

zSUM-1 provides line summing and inverting features in compact 3hp format.

6 input on front.
Inverted output.
Normal output.
Suitable for audio and CV signals.
-12dB attenuation via backside jumper.
2 additional inputs on the backside.
Auxiliary inverted input on the backside.
Low profile – skiff cases friendly.