If standard Audia® or AudiaSOLO hardware is being used, then microphone level outputs are available on 4x12 configurations. However, to make use of this feature, a Fixed 12-Channel Output block must be placed in the layout. This block contains all of the features normally found on an Output block, plus Mic Lvl 1, Mic Lvl 2, Mic Lvl 3, and Mic Lvl 4 buttons. These buttons allow each of Outputs 1~4 to be set for either microphone level (-55dB) or line level (0dB).