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QSC AD-C820R 8-Inch Coaxial Ceiling Speaker

QSC AD-C820R 8-Inch Coaxial Ceiling Speaker
QSC AD-C820R 8-Inch Coaxial Ceiling Speaker

QSC AD-C820R 8-Inch Coaxial Ceiling Speaker

Item #110266
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USD$665.00 Request Price Match
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QSC AD-C820R 8-Inch Coaxial Ceiling Speaker


  • 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)


  • 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): 61 Hz to 18 kHz
    • Useable Frequency Range (-10 dB): 52 Hz to 18 kHz
  • Maximum Output 2
    • Calculated Peak Output: 120 dB SPL
    • Calculated Continuous Output: 114 dB SPL
  • Nominal Coverage: 90° horizontal and vertical
  • Nominal Impedance: 16 ohms
  • Power Rating
    • Continuous power handling3:200 W
    • Recommended amplifier power (loudspeaker "program" power): 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 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)
  • 1. All frequency ranges specified refer to measured half-space response (2 pi).
  • 2. Calculated maximum peak SPL at 1 m, half-space, speaker operating at rated rms power pink noise input, 50 Hz to 20 kHz.
  • 3. Maximum input power tested in accordance with IEC recommendations; 50 Hz to 20 kHz band limiting, 6 dB signal crest factor.
… [ More ]
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