QSC AD-S4T 4.5" Two-Way Surface Speaker

Description QSC AD-S4T 4.5" Two-way surface speaker, 70/100V transformer with 8Ω bypass, 120° conical (Black or White) (PER PAIR) The QSC AcousticDesign™ QSC AD-S4T is a 4.5", 70/100V, 2-way surface mounted loudspeaker system, which is very well suited for background music applications requiring clarity and depth even at lower volume settings.  The AcousticDesign Series is offering the integrators a premium quality installed sound solution where aesthetics, performance and consistent coverage are paramount. Designed specifically for maintaining a consistent tonal characteristic across the entire family in pendant, ceiling and surface enclosures, the AcousticDesign Series allowing integrators seamless transitions within blended installations. The QSC AD-S4T featuring a high quality 100 mm [4 in] weather treated paper cone woofer on a 25 mm [1 in] voice coil. A carefully selected 19 mm [.75 in] silk dome tweeter with a 19 mm [.75 in] voice coil perfectly matches the performance and sensitivity the woofer for outstanding full-range reproduction. Consistent and even 120° axisymmetric (conical) coverage is achieved through DMT™ (Directivity Matched Transition), a QSC innovation which matches the directivity patterns of the woofer and the high-frequency waveguide at the crossover point. The result is a coherent transition between transducers and improved off-axis response. The even, accurate frequency response of the AD-S4T is maintained even in 70/100V applications by use of a low-loss, low-saturation 30-watt transformer with selectable taps, including an 8Ω bypass. To preserve weather resistance, the rotary selector is located on the back of the enclosure, protected by a weather grommet. 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) 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 with no slippage over time Advanced voicing filter sets using QSC Intrinsic Correction™, available through either Q-SYS processing or CXD amplifier platforms 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 Specification System Details AD-S4T Effective frequency range1 68 Hz - 20 kHz Rated noise power / voltage2 50 watts / 20 volts (rms) Broadband sensitivity3 87 dB SPL Coverage angle (-6 dB) 120° conical DMT Directivity factor (Q) 6 Directivity Index 8 dB Maximum continuous SPL4 104 dB Maximum peak SPL4 110 dB Rated impedance 8 ohms Recommended amplifier power(loudspeaker "program" power) 100 watts Transformer taps 70 V: 30, 15, 7.5, 3.75 W and 8Ω bypass100V: 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 woofer1-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 Enclosure Details Ingress protection IP-54 Operating environment Designed for indoor and outdoor use Testing The AD Series loudspeakers qualified for outdoor use using the following tests: 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) inches 10.3 × 6.34 × 6.42 Product dimensions (HWD) mm 261 × 161 × 163 Shipping weight 16.8 lb / 7.65 kg (pair packed) Shipping dimensions (HWD) inches 15.5 × 10.3 × 18 (pair packed) Shipping dimensions (HWD) mm 394 × 261 × 458 (pair packed) Included accessories X-Mount mounting system, Euroblock connector,input panel cover