Controllers & crossovers

LD Systems X 223 - Frequenzweiche aktiv

The LD Systems X223 is a stereo 2 way / mono 3 way crossover in standard 19"/1U rack format. Its rugged construction, high quality and robust knobs as well as the integrated power unit are rarities in this price range. It provides a mono sub output, an adjustable crossover frequency for each channel, adjustable LF/HF and input gains, phase reverse controls, switchable 40 Hz High-Pass filters and symmetrical XLR In- and Outputs. With the LD Systems X223 you get a crossover fulfilling the professional standards and offering great quality and sound characteristics.


  • Model name: LDX223
  • Bandwidth: 20Hz to 20kHz, +0.5 dB
  • Frequency response: 90kHz, +0/- 3dB
  • Filtertype: Linkwitz-Riley, 24 dB/octave
  • Dynamic Range: 106dB
  • THD+Noise:
  • Interchannel crosstalk:
  • Inputs: Female XLR
  • Max. Input Level: +22dBu typical, balanced or unbalanced
  • Outputs: Male XLR
  • Max. Output Level: >+21dBu balanced or unbalanced
  • Dimensions (W x H x D): 482 x 44.5 x 153 mm
  • Weight: 2,6 kg
Item no.: ADHLDX223

OMNITRONIC XO-23B Active crossover

High-quality active crossover

  • 2-way stereo or 3-way mono operation possible
  • 24 dB octave slope
  • Crossover frequency control on the front panel
  • Frequency range of crossover frequency 45 Hz to 9.5 kHz
  • Individual output level controls for all bands
  • Individual output mutes for easy band adjustment
  • Phase invert control
  • Low cut switch
  • XLR inputs and outputs
  • Illuminated switches for secure operation in dark environments
  • Rack installation
Item no.: 10355626
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Controllers & crossovers

From controlling power amps and speakers to special effects on instruments, controllers have a wide range of uses. They provide easier handling of sound equipment by, for example, connecting to multiple speakers and then controlling them as one unit. The speakers now operate as one entity. Controllers are also available as special effect machines for guitars and keyboards.

Our crossovers too are necessary devices in order to achieve the perfect sound quality! They differentiate from a mixer incoming signals into high and low frequencies and then pass them on to the speaker. Low frequencies get send to a woofer and high frequencies to a tweeter. If not already built into your speaker, you should definitely consider investing in one.