Description
QSC AD-C820R SYSTEM 8" High-power coaxial ceiling speaker, 70/100V transformer with 16ohm bypass, 90deg conical coverage. 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-C820R System consist of the AD-C820, the AD-C820 speaker baffle, the AD-C800BB Backcan assembly, and the AD-C800RG Round Grille.
Features
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-C820 transducer/baffle assembly for separated backcan installation
AD-C820 is sold in the following system packages:
- AD-C820R SYSTEM
- AD-C820 speaker baffle
- AD-C800BB Backcan assembly
- AD-C800RG Round grille (white, paintable)
- AD-C820S SYSTEM
- AD-C820 speaker baffle
- AD-C800BB Backcan assembly
- AD-C800SG Square grille (white, paintable)
| SPECIFICATIONS | AD-C820 |
| Configuration | Passive |
| Low-frequency Transducer | 8-inch (203 mm) ferrite woofer |
| Hight-frequency Transducer | 1.4-inch (36 mm) neodymium compression driver |
| Frequency Range 1 Frequency Response (-6 dB) Useable Frequency Range (-10 dB) | 61 Hz to 18 kHz 52 Hz to 18 kHz |
| Maximum Output 2 Calculated Peak Output Calculated Continuous Output | 120 dB SPL 114 dB SPL |
| Nominal Coverage | 90° horizontal and vertical |
| Nominal Impedance | 16 ohms |
| Power Rating Continuous power handling3 Recommended amplifier power (loudspeaker "program" power) | 200 W 400 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 W 70 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 | AD-C800BB: 18 liter (0.64 ft³) |
| Connectors | Back box (AD-C800BB): ceramic block connector inputs and “through” connectors (rated for 400 W max). Loudspeaker Baffle (AD-C820): 10-pin MATE-N-LOK™ connector and faston connectors. |
| Mounting Hardware | Pre-installed, suspended, back box, four vertical mounting straps. Loudspeaker Baffle: captive, integral Mounting Clamps. |
| Weight - Net | AD-C820: 8 lb (3.6 kg) AD-C800BB: 9.5 lb (4.3 kg) System Weight: 17.5 lb (7.9 kg) |
| Dimensions | Diameter: 14.9-inch (379 mm) Enclosure only Depth: 8.3-inch (211 mm) Enclosure with mounting straps Depth: 11.2-inch (284 mm) |
