QSC AcousticDesign AD-S4T 4" Two-Way Surface Mount Loudspeaker (White)

QSC AcousticDesign AD-S4T 4" Two-Way Surface Mount Loudspeaker (White)

QSC AcousticDesign AD-S4T 4" Two-Way Surface Mount Loudspeaker (White)

B&H # QSADS4TWH MFR # AD-S4T-WH
Important Notice: This item is non-cancelable and non-returnable
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Color: White

QSC AcousticDesign AD-S4T 4

Special Order

QSC AcousticDesign AD-S4T 4
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  • 1Description
The white QSC AcousticDesign AD-S4T Loudspeaker is a surface mounted 70/100V, 4" two-way loudspeaker system, ideally suited for a wide variety of foreground and background sound reinforcement applications. The AD-S4T features a high-quality 4" weather-treated paper cone woofer on a 1" voice coil. It also has a 0.75" silk dome tweeter with a 0.75" voice coil. The consistent and even 120° axisymmetric (conical) coverage is achieved through DMT (Directivity Matched Transition), which matches the directivity patterns of the woofer and the high-frequency waveguide at the crossover point. The even and accurate frequency response of the AD-S4T is maintained even in 70/100V applications by use of a low-loss, low-saturation 30W transformer with selectable taps, including an 8-ohm bypass. The rotary selector is located on the back of the enclosure, protected by a weather grommet. Featuring a rugged ABS enclosure, sealed input panel cover, and powder-coated aluminum grille, the AcousticDesign surface-mounted speaker exceeds IEC60529 IP-54 ratings for dust and splash resistance.

The two-way surface-mount loudspeaker includes the X-Mount system for easy installation. Knurled surfaces at the pivot planes ensure the load will not drift or sag over time. Articulation marks allow pre-configuration of the X-Mount while on the ground with no special tools required. Voicing filter sets using QSC Intrinsic Correction techniques are obtainable via Q-Sys networked audio processing platforms, including CXD amplifiers (sold separately). For your system integration needs, complete EASE, CF2, CAD, and BIM files are available for download on the QSC website.

4" Weather-treated woofer; 0.75" silk dome tweeter
120° Axisymmetric (conical) coverage
30W Low-saturation and low-loss 70/100V transformers with 8-ohm bypass
Maximum peak SPL 110 dB (8 ohm bypass)
DMT (Directivity Matched Transition) ensures smooth, uniform frequency response over the coverage area
X-Mount system enables the loudspeaker to be easily installed and deployed at a variety of angles
Lightweight ABS enclosure for durability
Sealed input panel cover and powder coated aluminum grille for added weather resistance
Meets IEC60529 IP-54 for dust and splash resistance
Suitable for foreground and background sound reinforcement applications in restaurants, retail, educational institutes, concourses, casinos, transportation terminals, places of worship, or as part of large system ancillary support
Complete EASE, CF2, CAD, and BIM information available online
In the Box
QSC AcousticDesign AD-S4T 4" Two-Way Surface Mount Loudspeaker (White)
  • X-Mount Mounting System
  • Euroblock Connector
  • Input Panel Cover
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description
    Frequency Range 68 Hz to 20 kHz

    Free-field, -10 dB from on-axis sensitivity

    Noise Rating Power: 50 W
    Voltage: 20 V rms

    IEC60268-1 noise signal for 2 hours

    Sensitivity Broadband: 87 dB SPL

    On-Axis, free-field sensitivity, 2.83 V, 3.3' (1 m)

    Coverage Angle At -6 dB: 120° (500 Hz to 5 kHz)
    Directivity Factor 6
    Directivity Index 8 dB
    Maximum SPL Continuous: 104 dB
    Peak: 110 dB

    Calculated from rated noise voltage and sensitivity

    Rated Impedance 8 ohms
    Transformer Taps 70 V: 30, 15, 7.5, 3.75 W and 8-ohm bypass
    100 V: 30, 15, 7.5 W and 8-ohm bypass
    High Frequency Transducer 0.75" (1.9 cm) silk dome tweeter/0.75" (1.9 cm) voice coil, horn loaded
    Low Frequency Transducer 4" (100 mm) weather-resistant paper cone woofer / 1" (25 mm) voice coil
    Input Connector Euroblock connector with parallel output terminals
    Construction Material Enclosure: Painted ABS polymer
    Grille: Powder-coated aluminum
    X-Mount: Powder-coated aluminum
    Ingress Protection Rating IP-54
    Operating Environment Indoor and outdoor use
    Testing Salt Fog: MIL-STD-810G Method 509.5 for 100 hours
    Humidity: MIL-STD-810G Method 507.5, Natural cycle B2, cyclic high RH for 7 days
    High and Low Temperature: Tested to QSC internal standards between -4 to 122°F (-20 to 50°C)
    Operating Temperature -4 to 122°F (-20 to 50°C)
    Dimensions 10.27 x 6.34 x 6.42" (261 x 161 x 163 mm)
    Weight 6.5 lb (2.9 kg)
    Packaging Info
    Package Weight 8.7 lb
    Box Dimensions (LxWxH) 15.0 x 10.0 x 9.0"

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