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dbx® 223xs

Stereo 2-way, mono 3-way crossover with XLR connectors

Item # 856223XS

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Overview

Our take on the dbx® 223xs

The dbx 223xs crossover is functionally identical to their 223s model, but provides XLR inputs and outputs in place of the 223s's 1/4" TRS connections.

Help your amps and speakers sound better together

The dbx 223xs crossover is functionally identical to their 223s model, but provides XLR inputs and outputs in place of the 223s's 1/4" TRS connections.

You may normally think of a crossover as being inside a speaker, but a component crossover like the dbx 223xs can seriously improve the sound of your PA system. Designed for bi-amped stereo or tri-amped mono systems, the 223xs uses precision filters to divide the audio signal and function much like a traffic cop, directing only specific frequency bands to each amplifier and speaker driver. This means your amplifiers' full power is being used in an optimal fashion, reducing distortion and giving your PA system a cleaner sound.

dbx 223xs

The 223xs has the pro-style features and rugged reliability you expect from dbx. It has 24dB per octave Linkwitz-Riley filters, independent output gain controls for level matching, and a selectable 40 Hz low-cut filter for each channel. If you're using a subwoofer, the 223xs also gives you the option of summing the low-frequency output to mono. Everything in the design exudes precision and pride, from the solid "click" of the controls to the high-quality balanced XLR inputs and outputs.

Product Highlights:

  • stereo 2-way or mono 3-way operation with mode switch
  • 24dB per octave Linkwitz-Riley filters
  • x10 range switch on both channels
  • crossover frequency range: 45-960 Hz or 450-9600 Hz
  • selectable 40 Hz high-pass (low-cut) filter for each channel
  • low-frequency summed (subwoofer) output
  • Individual level controls on all outputs
  • phase reverse switch on all outputs
  • balanced XLR inputs and outputs
  • bandwidth: 20-20,000 Hz (±3dB)
  • signal-to-noise ratio (stereo): 94 dB
  • 19"W x 1-3/4"H x 7"D (1U rack space)
  • weight: 3.7 lbs.
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Stereo 2-way/Mono 3-way Crossover
  • 7' AC power cord (IEC 3-prong)
  • 4 Rack mounting screws
  • 4 Flat washers
  • User Manual
  • Product Registration card
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Features
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Specifications

Features

Overview: The dbx 223xs stereo 2-way/mono 3-way crossover uses precision filters to separate the audio signal and direct the correct frequencies to your loudspeakers. This allows your amplifiers to use their full power on the usable signal for cleaner, fuller sound. The 223xs uses XLR balanced input and output connectors.

Stereo/Mono Operation: The 223xs can be configured for two channel stereo operation, splitting each channel's signal into low and high frequencies. You can also configure the crossover for mono operation, with a 3-way output of low, mid, and high frequencies. The Mode switch is located on the rear panel.

Filters: The dbx 223xs utilizes professional standard Linkwitz-Riley 24dB per octave filters. These filters sharply roll off the selected frequencies to provide clean signals at each output.

High Pass (Low Cut): Both channels are equipped with selectable 40 Hz high pass (low cut) filters with a 12 dB per octave slope. When selected, very low frequencies are filtered out of the audio signal to prevent the amplifier from wasting power trying to reproduce extremely low frequencies. The 40 Hz High Pass filter can be used in a PA system without a separate subwoofer.

Phase Reverse: Each output is equipped with a polarity reverse switch on the front panel. When speakers are not in phase, the low-end frequency response suffers, and comb filtering in the high frequencies occurs. When all speakers are operating in phase, the system performs at peak efficiency.

Frequency Multiplier: Each channel of the crossover has an x10 frequency multiplier. When not engaged, the crossover range of that band is 45 Hz to 960 Hz. When the x10 button is pressed, the crossover range is multiplied by 10 to 450 Hz to 9.6 kHz.

Low Frequency Summing: The low frequency (subwoofer) output can be switched from normal (stereo) operation, where the left and right channel signals are separate, to mono-summed operation. The mono summing of the subwoofer output can be used when you have a single mono subwoofer and stereo speakers. The LF Sum control is located on the rear panel.

Front Panel Controls: The dbx 223xs crossover has the following independent controls for Channel One and Channel Two:

  • Input Gain: Controls the input level with +/- 12dB of gain. In stereo, both input gain controls are used (Ch 1 + Ch 2). In mono, only Ch 1 control is used.
  • Xover Frequency: A rotary dial for setting the crossover frequency between 45 Hz and 960 Hz (or between 450 Hz and 9.6 kHz with x10 on). In stereo, the crossover splits the signal into low and high frequencies for each channel. In mono, the channel one crossover splits the signal into low and mid frequencies, and the channel two crossover splits it into mid and high frequencies.
  • Output Gain: These rotary dials control the output of each individual frequency band. When operating in stereo, there are output gain controls for lows and highs for each channel. For mono operation, gain controls are provided for Low (Ch 1), Mid (Ch 2) and High (Ch 2) frequencies. Each output gain control has a corresponding phase inversion button.

Rack Mountable: The 223xs can be rack-mounted into a standard 19" equipment rack. Four rack screws and washers are included in the box. The 223xs requires only 1U of rack space.

Connections

Inputs: The dbx 223xs is equipped with female locking XLRs (pin 2 hot) input connectors. The input can accept balanced or unbalanced input sources. There are two input connectors for stereo operation. Only the Channel One input is used for mono operation. The maximum acceptable input level is typically +22dBu.

Outputs: The crossover has male XLR output connectors. Two output connectors are provided for each channel. For stereo operation the low and high outputs are used for each channel. For mono operation, the low output on the channel one side, and the mid and high outputs on the channel two side are used. The second output on channel one is not used. 

AC Power: The 223xs has a 3-pin IEC power cord receptacle, and comes with a 7-foot AC power cord.

Specifications

  • Input: XLR connectors
    • Impedance: Balanced >50kΩ, Unbalanced >25Ω
    • Max Input Level: +22 dBu typical, balanced or unbalanced
  • Output: XLR connectors
    • Type: Electronically balanced/unbalanced, RF filtered
    • Impedance: Balanced 60Ω, Unbalanced 30Ω
    • Max Output Level: > +20 dBu balanced/unbalanced into 600Ω or greater
  • Bandwidth: 20 Hz to 20 kHz, +0/-0.5 dB
  • Frequency Response: <3 Hz to >90 kHz, +0/-3 dB
  • Signal-to-Noise: Ref: +4 dBu, 22 kHz measurement bandwidth
    • Low Output: > 94dB, stereo/mono
    • Mid Output: > 93dB, mono
    • High Output: > 91dB, stereo/mono
  • Dynamic Range: > 106dB, unweighted, any output
  • THD+Noise: <0.004% at +4 dBu, 1 kHz, <0.04% at +20 dBu, 1 kHz
  • Interchannel Crosstalk: < -80 dB, 20 Hz to 20 kHz
  • Crossover Frequencies:
    • Stereo Mode: Low/High: 45 Hz to 960 Hz, or 450 Hz to 9.6 kHz (x10 setting)
    • Mono Mode:
      • Low/Mid: 45 Hz to 960 Hz, or 450 Hz to 9.6 kHz (x10 setting)
      • Mid/High: 45 Hz to 960 Hz, or 450 Hz to 9.6 kHz (x10 setting)
    • Filter Type: Linkwitz-Riley, 24 dB/octave, state-variable

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