Featuring a built-in audio interface, 2 large, touch-sensitive jog wheels, and 4 virtual decks, the DJ Console 4-Mx DJ controller gives the pro DJ a wide variety of high-performance controls. This includes 89 controls in 2-deck mode and 150 controls in 4-deck mode. 2 Jog wheels The jog wheels on the Hercules" DJ Console 4-Mx are the same size as jog wheels on CD players, are secure so there"s no disturbance from static electricity, and they are intuitive enough so there"s never a need to ever calibrated. Each has weight sensors that detect your hands weight to activate scratch mode in a natural way like on vinyl turntables and high-end CD players. During audio track playback, the 4-Mx"s jog wheels let you manipulate the music in the following ways: Rotation without jog wheel press = pitch bend (like when you turn a turntables ring) Rotation with jog wheel press = scratch (like when you turn a vinyl record with your hand flat on the record) No rotation with jog wheel press = stop playback (like when you stop a vinyl record"s rotation with your hand) No rotation without jog wheel press = playback continues 4-deck control DJ Console 4-Mx controls both 2 decks and 4 decks, with 2 buttons switching the decks: a deck switch button on the left deck converts deck A into C / deck C into A while a deck switch button on the right deck converts deck B into D / deck D into B. Once a deck is switched, all of the commands that the deck"s controls send to the DJ software are changed, and the letter of the active deck is highlighted in the center of the mixer. 2 ways of using DJ Console 4-Mx"s audio outputs For a mix inside DJ Console 4-Mx, connect the speakers/amplifier to outputs 1-2 to play the mix for your audience and connect headphones to one of the 2 headphone outputs (front or top) to preview tracks. For an external mix using an external mixer with DJ software, connect DJ Console 4-Mx outputs 1-2 to inputs 1-2 on the external mixer, outputs 3-4 to inputs 3-4 on the external mixer, mix on the external mixer, hook up a pair of headphones to the external mixer, and then use DJ Console 4-Mx to control the virtual decks. Microphone input The DJ Console 4-Mx"s microphone input can be used as a talk-over source (default mode)the microphone is played on outputs 1-2 over the music in the background, using the music attenuation level set inside the control panel (0dB, -3dB, -6dB or -9dB). It can also be used as a standard source replacing inputs 1-2. The DJ Console 4-Mx preamplifies the microphone input by up to +34dB. The DJ Console 4-Mx gives you with 2 stereo outs and 2 stereo ins, and comes with VIRTUAL DJ LE software.Large DJ controller with metal casing, built-in audio and large jog wheels (12cm (4.7") diameter with a 1.9cm (0.75") height Large DJ station for mobile computer DJs 2-deck/4-deck metal DJ controller to mix 2 or 4 stereo audio tracks 2 stereo out (for mixing & previewing) + 2 stereo in (for analog gear) Mobile metal controller: a large mixer (40x25cm) with included carry bag 2 large jog wheels with touch detection Jog wheel size: 12cm diameter (4.7") x 1.9cm height (0.75") Weight sensors, to detect the hands weight on the jog wheel top Great for scratching and seeking within audio tracks Jog wheel accuracy: Rotation - 256 steps per revolution = 1.4 degrees per step, Press down - <1mm travel 2-deck & 4-deck control 2 shift buttons to turn deck A into deck C, and deck B into deck D 2-deck for standard DJ mixes, when mixing 2 audio tracks 4-deck mixing: double the controls when you mix 4 tracks 2 stereo outputs 2 independent stereo outputs on the rear panel: 4 RCA connectors to connect to a stereo system, a recorder, 4 mono connectors in 1/4" jack format, to connect to a pub