DigaClipPlayer: Sound is overamplified while playout to SDI

Q: We set up DigaClipPlayer to work with our Centaurus II video board for playout via SDI. We noticed that the audio channels have too high amplification. It seems that there is more than 6 dB too much output.
A: This can happen when the audio output is configured to 2 channels. It must be configured to use 8 channels. This can be done in Admin tool.
Local Settings \ DigaClipPlayer \ Settings : AudioPlaybackChannels = 8