AD-234XS 2/3/4-Way Active Crossover

The AD-234XS 2/3/4-Way Active Crossover is a high-performance, professional-grade solution for optimizing multi-way sound systems. Designed for both stereo and mono operation, this crossover delivers exceptional audio clarity, superior signal management, and flexible configuration options—making it ideal for live sound, studios, stage setups, and installed PA systems.

High-Quality Inputs and Outputs

The AD-234XS features XLR connectors for both input and output, supporting electronically balanced/unbalanced connections and RF filtering to eliminate signal interference. With an input impedance of >50k ohm (balanced) and >25k ohm (unbalanced), it accommodates a wide range of audio sources. The maximum input level exceeds +22dBu, allowing it to handle high-output signals without distortion.

The output section includes impedance-balanced/unbalanced XLR connectors, with a balanced output impedance of 60 ohm and 30 ohm unbalanced. It supports a maximum output level of >+21dBu into loads of 2k ohms or greater, ensuring strong signal integrity throughout the signal chain.

Outstanding Audio Performance

This unit delivers a bandwidth of 20Hz to 20kHz (±0.5dB). It also offers an extended frequency response of <3Hz to >90kHz (+0/-3dB), covering the full audio spectrum with high accuracy. The dynamic range exceeds 106dB (unweighted), providing excellent headroom. With a signal-to-noise ratio referenced to +4dBu, the AD-234XS ensures clean and noise-free signal processing.

Total Harmonic Distortion + Noise (THD+N) is impressively low at <0.004% at +4dBu, 1kHz and remains under 0.04% even at +20dBu, delivering clean, transparent sound even at high volume levels. The unit also features a Common Mode Rejection Ratio (CMRR) of >40dB, typically >55dB at 1kHz, minimizing ground loop interference.

Flexible Crossover Configuration

The AD-234XS supports both stereo 2-way or 3-way and mono 4-way crossover configurations, with adjustable crossover frequencies ranging from 45Hz to 9.6kHz using the x10 range setting. It utilizes Linkwitz-Riley 24 dB/octave filters, ensuring smooth phase alignment and accurate driver control in complex speaker systems.

Reliable Construction and Power

Operating on 230V AC at 50/60Hz, this unit fits easily into any rack setup. It comes packed at 65mm x 560mm x 290mm, with a net weight of 1.8kg and gross weight of 2.6kg, making it portable yet rugged enough for touring or fixed installations.

1. What is the AD‑234XS?
   The AD‑234XS is a high-performance 2/3/4‑way active crossover designed for professional multi‑way sound systems. It supports both stereo (2‑way or 3‑way) and mono (4‑way) configurations with precise crossover control and ultra‑clean audio.

2. What input and output connectors does the AD‑234XS use?
   The AD‑234XS uses XLR connectors for both inputs and outputs. Inputs are electronically balanced/unbalanced and RF filtered, and outputs are impedance‑balanced/unbalanced and RF filtered.

3. What are the input impedance and maximum input level?

   • Input impedance: >50 kΩ (balanced), >25 kΩ (unbalanced)

   • Max input: >+22 dBu balanced or unbalanced

4. What are the output impedance and maximum output level?

   • Output impedance: 60 Ω (balanced), 30 Ω (unbalanced)

   • Max output: >+21 dBu balanced/unbalanced into ≥2 kΩ loads

5. What is the audio performance of the AD‑234XS?

   • Bandwidth: 20 Hz–20 kHz ±0.5 dB

   • Extended frequency response: <3 Hz to >90 kHz (+0/-3 dB)

   • Dynamic range: >106 dB (unweighted)

   • THD+Noise: <0.004% at +4 dBu, 1 kHz; <0.04% at +20 dBu, 1 kHz

   • CMRR: >40 dB, typically >55 dB at 1 kHz

6. What crossover configurations and frequency ranges are available?
   The AD‑234XS supports:

   • Stereo mode: 2‑way or 3‑way

   • Mono mode: 4‑way

   Crossover frequencies (with x10 setting):

   • Low/Mid: 45 Hz–960 Hz or 450 Hz–9.6 kHz

   • Low/High: 45 Hz–960 Hz or 450 Hz–9.6 kHz

   • Mid/High: 450 Hz–9.6 kHz

   • Mono: Low/Low‑Mid, Low‑Mid/High‑Mid, High‑Mid/High with similar ranges.

7. What type of crossover filters does the AD‑234XS use?
   It uses Linkwitz‑Riley (L–R) 24 dB/octave, state‑variable crossover filters, delivering smooth phase alignment and accurate driver control in complex speaker systems.

8. Is the AD‑234XS suitable for live sound, studios, and installed PA systems?
   Yes. With ultra‑low distortion, high dynamic range, balanced XLR I/O, RF filtering, and flexible 2/3/4‑way crossover modes, the AD‑234XS is ideal for live sound, studio monitoring, stage setups, and fixed installed PA systems.

9. What are the power and physical specifications of the AD‑234XS?

   • Operating voltage: 230 VAC, 50/60 Hz

   • Packing dimensions: 65 mm × 560 mm × 290 mm

   • Net weight: 1.8 kg

   • Gross weight: 2.6 kg

10. How does the AD‑234XS reduce interference and ground loop issues?
    The unit’s inputs and outputs are balanced and RF filtered, and it features a high CMRR (>40 dB, typically >55 dB at 1 kHz), which minimizes common‑mode noise and ground loop interference, ensuring clean signal processing in noisy environments.