QSC AD-C820R 8-Inch Coaxial Ceiling Speaker

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)

Specifications:

• 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.