· Provide the power supply value of the number of connected units of the system, make up the power of the power supply, and realize the unit that drives the limit.

·The built-in overload protection of the expansion machine can effectively prevent short-circuit overload of units and connections.

· 60 microphone units can be connected, and four channels can be connected in parallel, and each unit can connect 20 units;

· Four 8P-DIN sockets for system multi-way connection and connection to other expansion units, can be placed flat on the table or installed in a 19-inch standard cabinet.

· Standard 1U chassis design, subjected to high voltage test to ensure compliance with safety standards