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Behringer CX3400: Super-X Pro Stereo Crossover — main product image
Behringer CX3400: Super-X Pro Stereo Crossover
Behringer CX3400: Super-X Pro Stereo Crossover
Behringer CX3400: Super-X Pro Stereo Crossover
Behringer

Behringer CX3400: Super-X Pro Stereo Crossover

★★★★★4.2 (72 reviews)

A precision stereo crossover with Linkwitz-Riley filters, per-output limiters, and adjustable time delay for professional loudspeaker management.

$139.00*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Behringer Super-X Pro CX3400 is a professional-grade analog crossover designed for live sound reinforcement and installed speaker systems that require precise frequency band separation. Its Linkwitz-Riley filters operate at a steep 24 dB per octave slope, producing an absolutely flat summed amplitude response and zero phase difference at the crossover point—critical characteristics for maintaining tonal accuracy across multi-driver loudspeaker systems. The unit can be configured as a stereo 2-way, stereo 3-way, or mono 4-way crossover, accommodating everything from simple two-box PA setups to complex quad-amped systems from a single rack space.

Each output channel features its own independent limiter, allowing precise threshold settings that protect individual drivers from damage without affecting the other frequency bands. The adjustable time delay on each output provides phase alignment between drivers that are physically offset within a cabinet or between separate enclosures, and the built-in CD horn equalization corrects the frequency response anomalies typical of constant directivity horns. Together, these features give sound engineers fine-grained control over speaker system behavior without requiring multiple outboard processors.

Key Features

Professional stereo 2-way/3-way/mono 4-way crossover featuring state-of-the-art Linkwitz-Riley filters with 24 dB/octave

Individual Limiters on each output for optimal loudspeaker protection

Adjustable time delay for phase alignment between drivers

CD horn equalization for constant directivity horn compensation

Absolutely flat summed amplitude response, zero phase difference

Specifications

Brand
Behringer
Model
CX3400
Type
Analog Crossover
Configurations
Stereo 2-way / Stereo 3-way / Mono 4-way
Filter Type
Linkwitz-Riley, 24 dB/octave
Output Limiters
Individual limiter on each output
Time Delay
Adjustable per output for phase alignment
Special Features
CD horn equalization for constant directivity compensation
Color
Silver / Black

Pros & Cons

👍 Pros

  • Linkwitz-Riley 24 dB/octave filters provide a flat summed response with zero phase difference at the crossover frequency
  • Individual limiters on every output protect each speaker driver independently from signal peaks
  • Adjustable time delay on outputs allows precise phase alignment between physically offset drivers
  • Supports stereo 2-way, stereo 3-way, and mono 4-way configurations from one rack unit
  • CD horn equalization built in eliminates the need for a separate EQ processor when running constant directivity horns

👎 Cons

  • Controls are entirely analog with no digital recall, so settings must be manually noted and re-dialed if the unit is reconfigured
  • The unit offers fixed 24 dB/octave slopes with no option to select gentler 12 dB or steeper 48 dB slopes
  • Rackmount form factor and rear-panel connections make it impractical for portable or quick-setup applications
  • No digital audio inputs—the CX3400 works only with analog signal paths

Frequently Asked Questions

The CX3400 operates as a stereo 2-way crossover, a stereo 3-way crossover, or a mono 4-way crossover, giving you flexibility to match different speaker system setups.
Each output has its own independent limiter that caps the signal level before it reaches the power amplifier, preventing sudden peaks from overdriving and potentially damaging individual speaker drivers.
The time delay lets you offset the signal timing on individual outputs to align the acoustic arrival of sound from drivers mounted at different physical depths, ensuring coherent phase alignment at the listening position.
It uses Linkwitz-Riley filters with a 24 dB per octave slope, which are designed to produce an absolutely flat summed amplitude response with zero phase difference at the crossover point.
CD horn equalization compensates for the rising high-frequency response characteristic of constant directivity horns, allowing the CX3400 to deliver a flatter frequency response when used with that type of horn.

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