QSC AD-C821R SYSTEM 8" High-power blind mount coaxial ceiling speaker, 70/100V transformer
Description QSC AD-C821R SYSTEM 8" High-power blind mount coaxial ceiling speaker, 70/100V transformer The QSC AD-C820 and QSC AD-C821 are designed acoustically identical and for public address, music playback and distributed audio in applications requiring an high output from a ceiling mounted loudspeaker. The AcousticDesign™ Series of installation loudspeakers has been designed for versatility and trouble free operation. Both models are using custom designed crossover and transducers networks, in combination with an acoustically optimized enclosure (AD-C800BB), or as a fully integrated, sealed system (AD-C821). The loudspeakers are running with the AD Series philosophy of bringing accurate and natural sound quality combined with reliability and versatility to high-ceiling applications.The AD-821 is a fully integrated, factory sealed system using a “dog-ear” style mounting scheme. When ordered as a system (AD-C821R SYSTEM; AD-C821S SYSTEM) a set of tile rails and a c-ring are included as is a round or square grilleThe 8" woofer is crafted with a treated paper cone placed on a steel frame. The usable low frequency of the system, in its optimized enclosure, extends to 52 Hz. The 1.4" compression driver is acoustically mated to the woofer and fires through the center of the woofer for a smooth transition at crossover. The 90 degree axisymmetric coverage is also been achieved by this system. The low tolerance, high-current network components are providing smooth passive, full-range performance. The included custom designed transformer, 70V/100V, is optimized for low line loss as well as transparent and accurate acoustic performance. The AD-C820/C821 loudspeakers measure 91dB sensitivity (1W/1m) and at full continuous power are capable of producing 114 dB SPL (1W/1m) output. Features 8-inch low-frequency woofer 1.4-inch diaphragm compression driver 200 watt continuous power rating 70V/100V multi-tap transformer included (system can operate in distributed or low-impedance mode) AD-C821 designed as a fully integrated blind-mount system AD-C821S SYSTEM AD-C821 blind-mount loudspeaker system Split ring and tile rails AD-C800SG Square grille (white, paintable) Specification SPECIFICATIONS AD-C821 Configuration Passive Low-frequency Transducer 8-inch (203 mm) ferrite woofer Hight-frequency Transducer 1.4-inch (36 mm) neodymium compression driver Frequency Range 1Frequency Response (-6 dB)Useable Frequency Range (-10 dB) 61 Hz to 18 kHz52 Hz to 18 kHz Maximum Output 2Calculated Peak OutputCalculated Continuous Output 120 dB SPL114 dB SPL Nominal Coverage 90° conical DMT Nominal Impedance 16 ohms Power RatingContinuous power handling3 Recommended amplifier power (loudspeaker "program" power) 200 W400 W Sensitivity 91 dB SPL, 1W/1m Bass Loading Ported Transformer Type Custom low distortion laminated core, wide bandwidth design Transformer Taps 100 V: 16 ohms bypass, 100 W, 50 W, 25 W70 V: 16 ohms bypass, 100 W, 50 W, 25 W, 12.5 W Agency Rating CE, UL 1480 (commercial/professional use) UL 2043 (air handling spaces) Enclosure Enclosure Volume 18 liter (0.64 ft³) Connectors Two 2-pin Euro-style connectors Mounting Hardware Captive, integral Mounting Clamps. Insert enclosure into mountinghole, and tighten. Suspended ceiling Split-ring and Suspended Ceiling Tile Rails - sold separately. Weight - Net 16 lb (7.3 kg) Dimensions Diameter: 13.4-inch (340 mm)Depth: 11.9-inch (302 mm)