Audio Input Source
Selects the audio input Source from either the internal microphone or the line input sockets on the rearpanel.
Note: The internal microphone is intended for use with the Sound2Light features. It is not a high fidelity signal suitable for music reproduction.
CAUTION: When the microphone is selected and the audio output is driving a powerful amplification system, feedback may be produced, which could be unpleasant or could cause loudspeaker damage.