Connect a microphone to the MIC jack.Before connecting the microphone, set the microphone MIC VOLUME to the minimum level to prevent feedback noise. 2. Press DISC (CD 1/2/3). TUNER.Select TAPE or AUX as the source to be mixed and start playback. 3. Adjust the volume level of the source with the MASTER VOLUME control. 4. Adjust the microphone volume with the microphone MIC VOLUME** control.