Product Details


QSC Audio

AD-C820/C821 Ceiling Mount Speaker

Description The AD-C820 and AD-C821 are acoustically identical and designed for music playback, public address and distributed audio in applications that require high output from a ceiling mounted loudspeaker. The AcousticDesign™ Series of installation loudspeakers has been designed for trouble free operation and versatility. Both models use custom designed transducers and crossover networks, in combination with an acoustically optimized enclosure (AD-C800BB), or as a fully integrated, sealed system (AD-C821). These loudspeakers continue the AD Series philosophy of bringing natural and accurate sound quality combined with versatility and reliability to high-ceiling applications. The AD-C820 assembly includes the co-entrant transducers, a 70V/100V transformer and a crossover mounted on an ABS baffle. When ordered as a system (AD-C820R SYSTEM; AD-C820S SYSTEM) the backbox (AD-C800BB) and a round or square grille are included. 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 split ring are included as is a round or square grille. Features - 8" low-frequency woofer - 1.4" diaphragm compression driver - 200 watt continuous power rating - 70V/100V multi-tap transformer included (system can operate in distributed or low-impedance mode) - AD-C820 transducer/baffle assembly for separated backcan installation - AD-C821 designed as a fully integrated blind-mount system SPECS Low Frequency Transducer: 8" (203 mm) ferrite woofer High Frequency Transducer: 1.4" (36 mm) neodymium compression driver Frequency Response (±3 dB): 61 Hz - 18 kHz Useable Frequency Range (-10 dB): 52 Hz- 18 kHz Max Continuous Output: 114 dB SPL Max Peak Output: 120 dB SPL Nominal Impedance: 16 ohms Power Capacity: 200 W Recommended Max Amp Power: 400 W Sensitivity: 91 dB SPL, 1W/1m Nominal Coverage: 90° horizontal and vertical 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 W 70 V: 16 ohms bypass, 100 W, 50 W, 25 W, 12.5 W