AES Cables look exactly like a standard low impedance microphone cable (our AES cable is blue in color so users can tell the difference between their digital and analog cables on stage). The connectors are Neutrik digital XLR connectors and the wire is ProCo's 222BD (two conductors, 22 gauge, braided shield, digital). The wire's impedance is 110 ohm to meet the specification.
The Audio Engineering Society (AES) and the European Broadcasting Union (EBU) work on standards for digitizing analogue audio, as used to interconnect both professional and domestic equipment. Work was started in the mid 1980s. This culminated in the publishing of the AES3 standard (frequently also known as AES/EBU) for professional use as well as, using different physical connections as specified in IEC 60958, within the domestic "Hi-Fi" environment. This work has provided the most commonly used method for digitally interconnecting audio equipment worldwide using physically separate cables for each stereo audio connection.The digital audio standard frequently called AES/EBU that is officially known as AES3, was first published in 1992 as a standard (and revised in 1995, 1998, and 2003) for carrying digital audio signals between various devices.