366 and 367 impedance matching transformers from Switchcraft are used to convert 110 Ohm AES/EBU digital audio signals to 75 Ohm signals and 75 Ohm signals to 110 Ohm. This allows for long distance transmission of AES/EBU digital audio over standard 75 Ohm coaxial lines. The adapters can also be used to connect AES/EBU digital audio signals to high-definition, broadcast quality video patchbays for secure and lossless patching.