QX544i Three-Way Trapezoidal Enclosure
Overview

The new QX Series delivers high output, broadband pattern control and exceptional fidelity for a wide range of permanently installed applications. Its high output level make it appropriate for long throws in arenas and stadiums or for high-energy applications like live music venues or dance clubs. Its broadband pattern control lets it tame hostile acoustical environments like cathedrals or highly reverberant public spaces. And its exceptional fidelity pleases the most critical listeners in concert halls and performing arts centers.

The QX544i loads an ultra-efficient mid/high compression driver with a 45° (h) x 45° (v) constant directivity horn. Four Phase Aligned™ 12-in low frequency transducers arranged as vertical and horizontal pairs leverage beneficial interaction based on their spacing to extend pattern control well into the low frequency range.

Because the four low frequency transducers surround the coaxial mid/high compression driver symmetrically in both the horizontal and vertical planes, response across the full frequency spectrum appears to originate from a single point in space. This basic design facilitates an idealized summation of the three frequency sections, eliminating the anomalies associated with designs that physically offset the sections. This idealized coherence applies in both the horizontal and vertical planes throughout the coverage area    
  
Features
• High output, bi-amplified, three-way performance
• Broadband pattern control
• Ultra-efficient, coaxial MF/HF compression driver
• Four Phase Aligned™ 12-in cone transducers (vertical and horizontal pairs)
• Installation flexibility

Specification
  • CONFIGURATION
    Subsystem:
    Transducer:  LF 4x 12 in. cone; MF 1x. 2 in. exit 3.5 in. compression; HF 1x 2 in. exit, 1.75 in compression driver
    Loading: LF: Phase-Aligned™; MF: Horn-loaded; HF: Horn-loaded
    Amplifier Channels: Bi-amp (Passive MF/HF) LF, MF/HF
    External Signal Processing: DSP w/EAW Focusing

  • PERFORMANCE
    Operating Range (-10 dB, Hz)
    55 – 20k
    Axial Sensitivity (1W @ 1m, dB SPL)
    LF: 103
    Passive MF/HF: 113
    Power Handling/Impedance (Watts @ Ohms)
    LF: 2000 @ 2 (single amp), 1000 @ 4 (2x pairs)
    Passive MF/HF: 175 @ 8
    Maximum sound pressure level (dB SPL)
    147
    Nominal Coverage (degrees)
    Horizontal: 45
    Vertical: 45
    Powering
    Bi-amplified (passive MF/HF)

  • ORDERING DATA
    Versions
    QX544i Black 2039613
    QX544i White 2039622
    QX544i-WP Black 2039618
    Accessories           Part Number
    Adapter Bracket QX Black, ACC-ABQX     2036437
    Weather Protection Shield QX Black, ACC-WPSQX  2036515
    U-Bracket Horizontal QX Black, UBKT-QXH   2036568
    Dimensions (inches/millimeters)
    Height (front): 27.96/710
    Height (rear): 15.87/403
    Width (front): 27.96/710
    Width (rear): 15.87/403
    Depth: 23.82/605
    Trap. Angle (degrees per side): 19.9
    Trap. Angle (degrees top and bottom): 19.9
    Weights (pounds/kilograms)
    Net: 134/61
    Shipping: 149/68

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