The American Audio VMS4 TRAKTOR comes bundled with an exclusive version of the legendary and universally acclaimed Traktor Software from Native Instruments that supports 4 decks. The VMS4 Traktor has unique 4x MIDILOG Channels that are compatible with any MIDI learn software or analog inputs. Crossfader curve adjustment, assignable touch strips, 2x mics with gain, treble, mid and bass control are just a few of the other great features you´ll find in the VMS4 Traktor.General Features: Traktor Ready - Special Edition with Buttons and Face Plate Designed for TRAKTOR Users Midi Controller with 4 USB / Analog selectable MIDILOG (MIDI & Analog) channels All audio control faders, knobs, switches, and buttons smoothed - eliminates popping, wiper noise, and zipper noise On/off soft startup and turnoff Gain/treble/mid/bass EQ on all MIDILOG channels 2 phono/line selectable analog channels Two microphone channels with illuminated on/off switches and gain/treble/mid/bass EQs On/off cueing on each MIDILOG channel Split cueing headphones with rotary mix control Illuminated rubber knobs for ease of use in dark environments Solid 1.6mm thick faceplate for extra durability Panel mounted rotary knobs Full analog mixer operation if the computer crashes or with external power supply Innofader replaceable crossfader compatible (sold separately) Crossfader curve control Crossfader assign and reverse Q-Start crossfader controlled startup for 2 external audio players User replaceable channel faders Master and Booth outputs with L/R balance Balanced Master outputs Bundled with TRAKTOR Software 12 position stereo master output VU meter MIDI Features: Built-in mouse pad Long life MIDI assignable touch strips Two 10- bit resolution pitch sliders 62 assignable MIDI buttons and switches 50 MIDI buttons have LED illuminations, including 18 with dual blue/red LEDs 4 assignable rotary encoders 34 assignable rotary controllers 5 assignable linear fader controllers Dual MIDI controls on all buttons and switches Dual 2000 point resolution touch sensitive turntable scratch controllers Audio Features: 24-bit 48 kHz analog audio 16-bit 44.1kHz USB audio 10-bit resolution on all analog fader controls THD 60dB* S/N ratio >85dB* Analog channel audio latency < 1msec Selectable USB modes: 4 in 4 out mode for running software effects on phono/line analog channels or 2 in 8 out mode for running 4 software channels and master recording 2 msec response on all buttons 4 msec response on all rotary and linear faders 1 msec USB latency For each audio channel, both line and phono modes