The E-MADI card can operate in any of the established MADI configurations, providing an Eclipse with 32, 56 or 64 channels of digital audio interconnect. Additionally, it can support all of the standard sample frequencies for professional use, including the 96kHz/32 channel option for high quality audio. One E-MADI64 card expands the functionality of the Eclipse Matrix system by providing up to 64 bi-directional channels to any AES10 compatible device. Each MADI64 channel input has an audio detection circuit that can be used to tally panel keys with incoming audio. In this way the MADI card acts as high density digital 4-wire interface for ease of set-up.