Art DIGITAL MPA User's Guide download pdf (Page 16)

Using the optical output in S/PDIF is recommended over the coax output, as it is the most robust and

reliable of all the digital outputs.

S/PDIF output

The S/PDIF coax connector allows the DIGITAL MPA II to connect to a wide range of consumer and

professional equipment. This output is .5V p-p (when connected) isolated from ground, and has a 75

Ohm impedance. The same data is sent to both this connector and the AES/EBU output, but it is

recommended that you not use both at the same time, as the AES/EBU output may work, but there

will be too great a loss in level to meet the S/PDIF spec.

AES/EBU output

The AES/EBU output of the DIGITAL MPA II is a 5V p-p signal with a 110 Ohm impedance. This

cannon connector is driven by the same drive circuitry and isolation transformer and as the S/PDIF

output.

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Art DIGITAL MPA User's Guide Page 16