Matrix Switch Corporation AES digital audio routing switchers are based on an all digital signal path that produces a constant output amplitude with reduced noise.
The AES-3id standard (SMPTE 276M) defines a 75-ohm BNC electrical variant of AES3. This can use the same cabling, patching and infrastructure as analogue or digital video, and is thus common in the broadcast industry.
These units are usually combined with supported Matrix Switch Corporation video routers.