QSC AD-C820R SYSTEM High-Output Ceiling Speaker
The AD-C820R SYSTEM is the complete high-output AcousticDesign ceiling package built around the AD-C820 baffle: an 8 inch treated-paper woofer with a 1.4 inch compression driver firing coaxially through its center, packaged with the AD-C800BB back box and a round grille so nothing else needs sourcing separately.
The coentrant transducer and crossover network are factory-mounted to the ABS baffle, and the 70V/100V transformer is a custom low-distortion, laminated-core design optimized for low line loss. Where the AD-C821 seals the whole assembly at the factory, the AD-C820 baffle mounts to its own separate back box, which suits jobs where the back box needs to go in ahead of the finished baffle.
| LF Transducer | 8 in (203 mm) ferrite woofer |
|---|---|
| HF Transducer | 1.4 in (36 mm) neodymium compression driver |
| Frequency Response (-6 dB) | 61 Hz - 18,000 Hz |
| Nominal Coverage | 90 degrees horizontal and vertical |
| RMS Power Handling | 200 W (400 W recommended max amp power) |
| Sensitivity | 91 dB SPL, 1W/1m |
| System Weight | 17.5 lb (7.9 kg), baffle + back box |
| Package Contents | AD-C820 speaker baffle, AD-C800BB backbox, AD-C800RG round grille |











