Precision Power QUADMIXWHITE Epsilon 4 Deck Usb Professional Midi Dj Controller [white] EPSILON QUAD-MIX 4-Deck MIDI USB DJ Controller+Mixer+Soundcard+Software - White. 4 Deck Digital DJ Midi Controller with Virtual DJ LE. Large 134mm touch sensitive jog wheels for scratch effects. Torque Adjustment for touch wheel sensitivity control & Scratch On/Off button. 100% Pitch Control, Key Lock, Pitch Slider, Pitch Bend. Beat Loop X  or X 2, Reloop & Seamless Looping. 4 Hot Cues & Sample Pads, Sample Select Knobs. Effect On & Off Knob, Effect Select Knobs. Effect Parameter Adjustment Knobs. 2 Encoders on each deck to Control Various Loop Playback. Play/Pause, Cue, & Sync Functions. Phono / Line inputs with Audio Thru Switch. Master output level & Gain control knobs. Dual Master Outputs; Balanced XLR & RCA. Centered Filter knob for Low & High Pass Filter for each individual channel. Separate EQ (HI, MID, LOW) for each channel. 100% Kill feature on EQ for (HI, MID, LOW) for each channel. Aluminum Knobs; Master, Track Knob, Mixer, EQ. Filter, & Effects Knobs. Compatible with all DJ MIDI software. Sampling Frequency: 44.1 KHz. Audio Resolution: 16 Bit. Output Level: 1.2V+-0.2V. Soundcard: 4IN / 4OUT. THD+N: 80dB. Crosstalk: &gt;80dB. Product Dimension: 18.7" W x 13.1" D x 2.5" H (474x 334x 64 mm). Product weight: 6.6 lbs (3.0KG). .