The American Audio MXR Series offers DJs the tactile feel and operation of a traditional DJ mixer while playing and controlling music from software on their computer. The 19 MXR is a 19-inch, 4-Channel MIDILOG Mixer with Midi/Analog control, built-in DSP D-Core Sound Card with 4-In/4-Out audio interface, Balanced XLR Outputs, MIDI Navigation Controls and user assignable control buttons to make it easy to customize and play your music. Features: 19-inch, 4-Channel MIDILOG Mixer (compatible with any &ldquo,Midi Learn Software or Analog Inputs &ndash, such as CD Players, Turntables, etc.) Inputs: 4 Line, 2 Phono, 3 Mics 20 On-board Midi Control Buttons (Mapable) MIDI interface (USB MIDI I/O) Built-in DSP D-Core Sound Card with 4-In/4-Out audio interface Controller Mode: When activated USB output streams are routed through master and headphone outputs Balanced XLR Outputs 3-Band EQ with Rotary Kills (Treble, Mid &, Bass) Midi Navigation Controls to allow easy software navigation of your music library Crossfader Curve Adjustment Crossfader Channel Assign Master, Booth, Headphone Level &, Mix Controls Microphone Volume Control + 2-Band EQ (Treble &, Bass) Microphone Reverb Control Mic 3 routed through channel MIDLOG 4 Crossfader Assignable Low/High Pass Filter Control 10 segment VU meter Audio inputs: RCA Microphone input: 1 x Balanced XLR, 2 x 1/4&Prime, balanced Headphone input: 1/4&Prime, stereo Multi-voltage operation: AC 100V~240V 50/60Hz Dimensions (LxWxH): 19&Prime, x 7.25&Prime, x 3.5&Prime,/482 x 178 x 85mm (19-inch R.M. &ndash, 4 spaces) Weight: 8 lbs. / 3.4 kg.