16.How to use SPDIF output in KA13?

If you need to use the SPDIF function, please enable the SPDIF OUT in the FiiO Control APP Android version first. Then connect the KA13 to the coaxial input port of other device via a dedicated 3.5mm to RCA coaxial cable. The pin definition diagram is as follows:

Please keep this option disabled when using the analog output, such as when outputting to headphones.