QSC Axon A4Flex is a powerful and versatile audio matrix mixer designed for a wide range of applications, such as corporate, education, and hospitality. It features 4 analog inputs, 2 analog outputs, 8 AES67 input and output channels, 2 USB audio channels, logic inputs and outputs, and GPIO. With its extensive DSP capabilities, including EQ, dynamics, and delay, the A4Flex offers flexible signal routing and processing options. The intuitive web-based control panel allows for easy configuration and monitoring of the device's parameters.