Befaco 's 1U ST MIX is an audio mixer with four adjustable inputs in Intellijel 1U format. The four channels are designed for stereo signals, but mono signals can also be mixed due to the normalization from the left to the right channel. The audio output is Stereo and LEDs indicate any overload. On the rear side, the 1U ST MIX can be connected to the Befaco Hexmix to expand the inputs, but not to the audio connectors of the Intellijel cases.