The Yamaha EXI8 input expander converts analog microphone/line audio to digital and transmits the signal using Yamaha's YDIF format. The EXI8's preamps can be controlled remotely from MTX/MRX series processor via Ethernet cable.
Support for the Newly-Developed "YDIF" Digital Audio Transmission Format
"YDIF" is a digital audio transmission format that uses an Ethernet cable to send and receive up to 16 channels of audio and word clock. Up to eight YDIF devices (maximum of seven for the EXi8 and/or EXo8) can be connected to expand the number of input/output channels available for one system.