The Korg Volca Mix is a four-channel analog mixer designed to combine multiple Volca units. It features a couple of mono channels and a  stereo channel. Each channel will be provided with a hi/lo pass filter, enabling you to adjust the sound of each Volga device. There is also an aux send and return function that allows you to integrate external effects. Customize your mix using the width, dynamics, or speed controls. Easily integrate external effects into your mix by using the dedicated aux input.