This Simple and yet powerful configuration is describing the Link between two Mixers with Audio from the Devices to the respective channels of Volca mixer and by linking two mixers to the AUX of the 2nd Mixer, leaving us with a single output to the main monitor and using the Sends of both mixers summoned into a passive Mickxer connecting again to the Aux In of Volca Mixer 1, thus using a Fx processor NTS-1 to process the FX of the Machines.