57 MASTER LEVELUse this knob to adjust the level of the Master Output (connection at the rear panel)58 MASTER VU METERThis series of leds indicate the level of the Master Output59 MASTER CUEUSe this button to send the signal of the Master Output to the Headphones channel. Use the Headphones Cue/Master mix knob to blend this signal with the signals of the Mixer Channels that have their CUE buttons enabled60 MASTER EQUse these knobs to adjust the High, Mid and Low frequencies of the Master Output signal61 BOOTH LEVELUse this knob to adjust the level of the Booth Output (connection at the rear panel)62 USB 1Use this socket to connect a USB Flash Drive. When connected, use the USB 1 button at the left side of the Display to Browse through its content. This source is not used within VirtualDJ. Hold down the STOP button below this socket, until the led turns off, to stop reading its content and eject the Media. Do not disconnect the USB drive while its led is on63 USB 2Use this socket to connect a USB Flash Drive. When connected, use the USB 2 button at the left side of the Display to Browse through its content. This source is not used within VirtualDJ. Hold down the STOP button below this socket, until the led turns off, to stop reading its content and eject the Media. Do not disconnect the USB drive while its led is on. This USB connection can be used to record your mix, including any External Source and Microphones64 MASTER RECPress this button to start/stop recording your mix in the USB 2 Drive. The recorded tracks are stored in a PIONEER DJ REC folder in WAV format65 TRACK MARKUse this button to split the recording and continue as additional track.