The XAF board provides 8 inputs and 8 outputs for the ADAT 8-channel format used, for example, by digital tape machines. The inputs and outputs of the board can optionally be equipped with sample-rate converters and can therefore handle asynchronous signals. All converters can be disabled together using the control program. The DSP is a standard feature allowing for audio corrections with high quality. For example, the input level can be adapted to the required recorder headroom, and phase inversion allows reverse-polarity signals already at the inputs of the audio network to be corrected.