Overview
QSC AD-S4T 4.5-inch 2-way, 120° conical DMT™
Features
- 4.5-inch weather treated woofer; 0.75-inch silk dome tweeter
- 120° conical DMT™ coverage
- 30 watt low-saturation and low-loss 70/100V transformer with 8Ω bypass
- Maximum peak SPL 110 dB (8 ohm bypass)
- Directivity Matched Transition® (DMT) 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 with no slippage over time
- Advanced Intrinsic Correction™ voicings available via Q-SYS™
- Lightweight ABS enclosures offer long-term durability and lasting good looks
- Sealed input panel cover and powder coated aluminum grilles for added weather resistance
- Meets IEC60529 IP-54 for dust and splash resistance
- Available in black (RAL 9011) or white (RAL 9010)
- Complete EASE, CF2, CAD, and BIM information available online
Specifications
- Effective frequency range: 68 Hz - 20 kHz
- Rated noise power / voltage: 50 watts / 20 volts (rms)
- Broadband sensitivity: 87 dB SPL
- Coverage angle (-6 dB): 120° conical DMT™
- Directivity factor (Q): 6
- Directivity Index: 8 dB
- Maximum continuous SPL: 104 dB
- Maximum peak SPL: 110 dB
- Rated impedance: 8 ohms
- Recommended amplifier power (loudspeaker "program" power): 100 watts
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Transformer taps:
- 70 V: 30, 15, 7.5, 3.75 W and 8Ω bypass
- 100 V: 30, 15, 7.5 W and 8Ω bypass
- HF transducer: 0.75-inch silk dome tweeter / 0.75-inch voice coil, horn loaded
- LF transducer: 4.5-inch weather resistant paper cone woofer, 1-inch / 25 mm voice coil
- Input connector type: Euroblock connector with parallel output terminals
- Enclosure material: Painted ABS polymer
- Grille material: Powder coated aluminum
- X-Mount material: Powder coated aluminum
- Ingress protection: IP-54
- Operating environment: Designed for indoor and outdoor use
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Testing:
- Salt fog: MIL-STD-810G Method 509.5 for 100 hrs.
- 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 -20° and 50° C
- Net weight: 6.5 lb / 2.9 kg
- Product dimensions (HWD): 10.3 × 6.34 × 6.42 inches (261 × 161 × 163 mm)
- Shipping weight: 16.8 lb / 7.65 kg (pair packed)
- Shipping dimensions (HWD): 15.5 × 10.3 × 18 inches (394 × 261 × 458 mm) (pair packed)
- Included accessories: X-Mount mounting system, Euroblock connector, input panel cover