Numark NS4FX

4-Channel DJ Controller for Professional Mixing

The Numark NS4FX puts four independent software decks under your fingertips, giving event DJs, club performers, and livestreamers the flexibility to layer tracks, samples, and loops simultaneously. Each channel strip features a dedicated volume fader, 3-band EQ with full kill, and a high-pass/low-pass filter knob. Supplied with Serato DJ Lite, this controller is fully mapped for Serato DJ Pro and supports Virtual DJ and algoriddim djay Pro AI.

What Sets the NS4FX Apart in Its Class

Unlike many controllers, two independent ¼" microphone inputs are routed outside the main deck channels, allowing DJs to keep every music deck available for mixing. The first mic input can be switched to an auxiliary RCA input. Both microphone signals combine with the main mix over USB, making external audio interfaces unnecessary for livestreams.

Precision Deck Controls for Beatmatching

Achieving perfect tempo alignment and expressive jog work is essential for every set. This model addresses both with full-length pitch faders, capacitive jog surfaces, and a pad system that adapts as your software evolves.

• Jog Wheels: 6-inch (152 mm) capacitive-touch with LED displays for BPM, elapsed time, and playhead position
• Pitch Faders: full-length with selectable range and Pitch Bend buttons for subtle adjustments
• With 16 total performance pads (8 per deck), users access hot cues, auto loops, fader cuts, and sampler features in Serato DJ Lite. Upgrading to Serato DJ Pro unlocks loop roll, slicer, and scratch bank capabilities.

Channel Strip and Effects Architecture

Shaping each deck's tonal character calls for both surgical EQ and creative filtering. The NS4FX combines 3-band EQ and a unified filter per channel, while the effects section gives hardware control over six software effects.

• EQ: 3-band with full kill for total frequency removal per channel
• Filter: combined high-pass/low-pass knob for sweeping transitions
• Effects: 6 software effects with paddle toggles, wet/dry mix, beat division, and post-fader routing

Professional Connectivity and Audio Specifications

Balanced main outputs ensure long cable runs to PA systems remain noise-free. A dedicated booth feed lets you control monitors in environments with multiple speakers.

• Main Outputs: 2x XLR balanced for PA systems and powered speakers
• Booth Output: 1x RCA stereo with dedicated level control
• Mic Inputs: 2x ¼" (6.35 mm) TS with volume and tone controls; Mic 1 switchable to aux RCA
• Headphone: ¼" (6.35 mm) + ⅛" (3.5 mm) TRS with level control
• Audio Quality: 44.1 kHz / 24-bit

Event DJs, Club Performers, and Livestreamers

Mobile DJs running weddings and corporate events take advantage of the dual microphone inputs and booth output, enabling clear announcements without losing deck space. Club performers access four-deck architecture for layered mashups, using long pitch faders and a dedicated loop section. Livestreamers value USB-routed microphone audio that eliminates the need for an external interface.

Numark's NS Series Legacy

Tracing back to the NS7, Numark’s original motorized-platter controller, the NS series established itself in professional DJ circles with robust build and innovation. Later generations continued this reputation, while the NS4FX moves toward lightweight portability without sacrificing the four-deck philosophy or professional connectivity found in earlier models.