SHOWCAST 100 features two XLR / 6.3mm combo sockets and one set of RCA for audio input. As for output, there is one set of RCA jacks for monitoring audio.
There is a 4-channel mixer with support for audio embedding, including two LINE inputs, one AUX input, and one HDMI digital audio input. This facilitates mixing tasks while handling video simultaneously.

0:00 Introduction
0:15 Audio mixing - Panel Control
0:59 Audio mixing - Menu Control