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Behringer DJX900USB 4-Channel DJ Mixer USB — main product image
Behringer DJX900USB 4-Channel DJ Mixer USB
Behringer DJX900USB 4-Channel DJ Mixer USB
Behringer DJX900USB 4-Channel DJ Mixer USB
Behringer DJX900USB 4-Channel DJ Mixer USB
Behringer DJX900USB 4-Channel DJ Mixer USB
Behringer

Behringer DJX900USB 4-Channel DJ Mixer USB

★★★★★4.2 (227 reviews)

The Behringer DJX900USB brings 24-bit digital effects, an optical crossfader, and USB recording to the DJ booth — serious tools at an entry-to-mid-tier price point.

$339.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Behringer DJX900USB is built for DJs who need a full-featured, effects-equipped mixing platform without the cost of a professional club-standard unit. The headline technical choice is the 45mm Infinium optical crossfader — a contact-free design that removes the primary failure point in traditional fader mechanisms. Where carbon-track faders introduce noise, dropout, and resistance changes as they wear, the Infinium maintains a consistent electrical signal across its full travel indefinitely. For DJs who cut frequently, that's not a minor convenience — it's the difference between a clean transient and a scratchy signal in the monitor. The 24-bit digital effects section adds reverb, echo, flange, and additional processing with enough resolution that artifacts stay below the audible threshold at moderate wet levels.

The built-in USB audio interface is the other defining feature of this mixer — class-compliant and driverless, it presents itself to any Mac or PC as an audio device without installing software. Record a live mix directly into your DAW, or route Spotify, a playlist, or a software DJ deck through the mixer's channel without an external interface. The dual auto-BPM counters with beat sync display round out the feature set, providing a tempo reference that works reliably on consistent electronic material. The mixer's build quality is appropriate for practice rooms, club residency, and smaller venues, though professional touring use would benefit from more ruggedized hardware. Gain staging demands some attention at high phono levels to keep the noise floor under control — a trade-off that experienced engineers will manage without difficulty.

Key Features

Professional 5-channel ultra-low noise DJ mixer with stylish, black design

45-mm infinium “contact-free" optical crossfader with adjustable tension and fader curve for years of use

State-of-the-art 24-bit digital effects with advanced parameter control

Built-in USB interface for recording and playback of any digital music file. Works with your PC or Mac* computer—no setup or drivers required

Intelligent dual auto-BPM counter with time and beat sync display

Specifications

Channels
5-channel
Crossfader Type
45-mm infinium “contact-free" optical
Crossfader Features
Adjustable tension, fader curve
Digital Effects
24-bit with advanced parameter control
USB Interface
Built-in for recording and playback
BPM Counter
Intelligent dual auto-BPM with time and beat sync display
Noise Level
Ultra-low noise

Pros & Cons

👍 Pros

  • The Infinium optical crossfader delivers consistently clean cuts with no mechanical wear degradation — the fader sounds as precise in session 500 as it did in session one.
  • 24-bit digital effects processing means reverbs and echoes are rendered at a resolution where artifacts stay below the threshold of audibility at normal wet levels.
  • Driverless USB audio interface makes recording a live mix or routing a computer source a zero-setup process — plug in, and the DAW sees it immediately.
  • Adjustable crossfader tension and curve let you tailor the fader response to scratch technique or smooth blend mixing without modifying hardware.
  • Dual auto-BPM counters with time and beat sync display provide a useful visual reference for tempo alignment without requiring additional hardware.

👎 Cons

  • The auto-BPM counter can lose tracking on non-quantized or variable-tempo material, making it unreliable as a sole beatmatching tool in genre-diverse sets.
  • At maximum phono gain, the noise floor becomes audible in quiet monitoring environments — gain staging discipline is required to keep the signal clean.
  • The USB interface is class-compliant and driverless, which limits sample rate and bit-depth options compared to a dedicated external audio interface for serious studio recording.
  • The 5-channel designation in the product description conflicts with the "4-channel" model name — verify input configuration against your source count before purchase.
  • The mixer's build quality, while adequate for practice and small venues, may show wear faster than professional-tier alternatives under heavy touring or club use.

Frequently Asked Questions

The Infinium fader uses an optical sensor rather than a physical contact mechanism, which means no resistive wear and a consistently clean signal path across the fader's travel. In practice, cuts stay tight and the audio doesn't degrade at the fader's edge positions the way carbon-track faders do over time.
The USB interface enables direct recording of your mix into a DAW or audio software on any Mac or PC without an external audio interface or drivers. You can also play back digital audio files from your computer through the mixer's outputs — useful for incorporating digital sources into a live set.
The effects are applied as a wet/dry blend, so the dry signal path is preserved. The 24-bit processing ensures the effects — reverb, echo, flanger, and others — are rendered at a resolution that doesn't introduce audible degradation to the source material when used at moderate settings.
The dual auto-BPM counter performs well on consistent four-on-the-floor material, but like most auto-BPM systems, it can hesitate on syncopated or variable-tempo tracks. Use it as a reference guide — your ears and manual beatmatching skills remain the most reliable tools for critical sync work.
Behringer rates this mixer as ultra-low noise, and at line level the noise floor is acceptably quiet for a mixer in this tier. At maximum phono gain, some users may detect a noise floor — keep gain staging conservative and use the channel EQ to control dynamics rather than relying on input trim alone.

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