The ACS 8.4 G2 provides matrix audio switching of 8 stereo inputs to 4 stereo outputs. Matrix switching allows any/or all inputs to be assigned to any/or all outputs. The ACS 8.4 G2 may be controlled via its front panel push-button controls, contact closures, open collectors, logic, multi-drop RS-232 serial and/or TCP/UDP Ethernet commands. Installation is simplified with RJ45 audio jacks for input and output connections and plug-in euroblock screw terminal connectors for expansion and remote control.