QSC AD-C series User Manual

QSC AD-C series User Manual

Ad-c series 203 mm (8") 2-way coax baffle assembly pre-install enclosure for ad-c820 203 mm (8") 2-way coax blind-mount split ring and tile rails for ad-c821 round grille for 8" loudspeaker square grille for 8" loudspeaker 304 mm (12") 2-way coax baffle a

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AD-C Series
AD-C820/AD-C821/ AD-C1200 User Manual
AD-C820 – 203 mm (8") 2-way coax baffle assembly
AD-C800BB – Pre-install enclosure for AD-C820
AD-C821 – 203 mm (8") 2-way coax blind-mount
AD-C800 RAIL KIT – Split Ring and Tile Rails for AD-C821
AD-C800RG – Round Grille for 8" loudspeaker
AD-C800SG – Square Grille for 8" loudspeaker
AD-C1200 – 304 mm (12") 2-way coax baffle assembly
AD-C1200BB – Pre-install enclosure for AD-C1200
AD-C1200SG – Square Grille for 12" loudspeaker
TD-000296-00 REV. C
*TD-000296-00*

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Summary of Contents for QSC AD-C series

  • Page 1 AD-C Series AD-C820/AD-C821/ AD-C1200 User Manual AD-C820 – 203 mm (8") 2-way coax baffle assembly AD-C800BB – Pre-install enclosure for AD-C820 AD-C821 – 203 mm (8") 2-way coax blind-mount AD-C800 RAIL KIT – Split Ring and Tile Rails for AD-C821 AD-C800RG –...
  • Page 2: Important Safety Precautions And Explanation Of Symbols

    QSC Audio Products 3-Year Limited Warranty QSC Audio Products, LLC (“QSC”) guarantees its products to be free from defective material and / or workmanship for a period of three (3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via prepaid transportation with a copy of proof of purchase (i.e.,...
  • Page 3: Package Contents

    Introduction Congratulations and thank you for your ceiling loudspeaker purchase. The AD-C820, AD-C821 and AD-C1200 models offer excellent acoustic performance in an easy-to-install and attractive package. Please review these instructions carefully and follow the recommendations. Installation should be done by a licensed installation professional and in accordance with these instructions and local building codes. The AD-C820 and AD-C821 models feature an 8"...
  • Page 4 Features AD-C821 Loudspeaker System – Figure 1 – – Figure 2 – a. Pivoting connection cover b. Euro connectors c. Pivoting connection cover retaining screw d. Loudspeaker wiring hole e. Seismic mounting tab f. Mounting tabs g. Grille attachment magnets h.
  • Page 5 AD-C820 Loudspeaker Baffle a. Mounting tabs – Figure 3 – b. Grille attachment magnets c. Tap Switch (transformer included in AD-C800BB) AD-C800BB Back Box Sold separately for use with AD-C820 Loudspeaker Baffle – Figure 4 – a. Dual Knockouts (½" and ¾") (Qty: 5) b.
  • Page 6 AD-C800 Rail Kit The AD-C800 RAIL KIT is sold separately for use with the AD-C821 loudspeaker system. – Figure 5 – – Figure 6 – Split Ring Suspended-ceiling Tile Rail AD-C800SG/RG Loudspeaker Grilles Sold separately for use with the AD-C820 and AD-C821 loudspeaker systems –...
  • Page 7 AD-C1200 Loudspeaker Baffle – Figure 9 – a. Dual Euro connectors b. 150 W Transformer for 70/100 V distributed loudspeaker systems c. Crossover network d. Installation hook AD-C1200BB Back Box Sold separately for use with AD-C1200 Loudspeaker Baffle – Figure 10 – a.
  • Page 8 AD-C1200SG Loudspeaker Grille – Figure 11 – AD-C821 Installation Options The AD-C821 Loudspeaker System is a blind-mount design made to mount into finished ceilings. The AD-C821 loudspeaker system can be mounted in suspended ceilings, as well as non-suspended ceiling types. We recommend that you consult an installation professional for safety assurance, quality installation, and optimum acoustic performance.
  • Page 9: Installation

    AD-C821 Installation Tools and Parts Required for Installation 1. #2 Phillips head screwdriver 2. Torque driver 3. Wire stripping tool 4. Soldering equipment 5. Tool for cutting loudspeaker mounting hole in ceiling. Must be able to cut a circular hole through the ceiling without damaging the structural integrity of the ceiling.
  • Page 10 15.16" 395 mm – Figure 12 – Install Split Ring and Suspended-ceiling Tile Rails 1. Skip this step if installing in a non-suspended ceiling. Pass the two Suspended-ceiling Tile Rails (Figure 6) through the hole and place on both sides (Figure 12) of the mounting hole 15.16"...
  • Page 11 Support and Wire the Loudspeaker System Important: Loudspeakers can potentially generate substantial vibration. In addition to ensuring all hardware is properly installed and secure, you must use the Seismic Support Bracket on the loudspeaker to secure the loudspeaker to an appropriate structural support. This minimizes the chance of the loudspeaker falling from the ceiling in the event the primary mount fails.
  • Page 12 AD-C800BB and AD-C820 Installation The AD-C800BB is designed to be pre-installed into the ceiling and wired. The AD-C820 Loudspeaker Baffle assembly is plugged into and secured to the back box at a later time. AD-C800BB Back Box Installation The AD-C800BB installation should be done by a licensed installation professional and wiring installed by a licensed electrician in accordance with local building codes.
  • Page 13 – Figure 17 – a. Facility’s loudspeaker signal wiring b. Ceramic terminal block c. Wiring to loudspeaker baffle d. Wire holding screws AD-C820 Installation 1. Connect the 10-pin Mate-N-Lok™ connector from the AD-C800BB to J1 on the transformer tap switch PCB. 2.
  • Page 14 Mount the AD-C820 or AD-C821 Loudspeaker System Note: The Mounting Clamps are part of the assembly and allow for mounting surfaces (ceiling) up to 2.75" in thickness. Do not install the grille until clamps have been tightened and any adjustments made. 1.
  • Page 15 2. Make sure all tests and adjustments are complete before installing the grille. 3. Locate the loudspeaker grille. 4. The loudspeaker system and grille both have a Grille-retaining Safety Tether. Using the clip on the grille’s tether, attach the grille’s safety tether to the loudspeaker’s safety tether.
  • Page 16 AD-C1200 and AD-C1200BB Installation The AD-C1200BB back box is designed to be pre-installed into the ceiling and wired. The AD-C1200 Loudspeaker Baffle assembly is plugged into and secured to the back box at a later time. AD-C1200BB Installation The AD-C1200BB installation should be done by a licensed installation professional and wiring installed by a licensed electrician in accordance with local building codes.
  • Page 17 – Figure 24 – a. Facility's loudspeaker signal wiring b. Ceramic terminal block c. Wiring to loudspeaker d. Wire holding screws AD-C1200 Installation Note: AD-C1200 comes pre-wired, from the factory, for transformer tap applications. To bypass the transformer see “Remove Transformer from the AD-C1200 Circuitry”...
  • Page 18 – Figure 25 – 1. Tighten the M3 wire retaining screws. 2. Reconnect the five-pin Euro-style connector plug into its mate on the PCB. Make sure all connections are secure. Caution: The AD-C1200 Loudspeaker Baffle assembly weighs 25 lbs (11.3 kg.) Be sure to use proper safety precautions. 3.
  • Page 19 – Figure 27 – a. Baffle mounting holes — 6 places b. Grille mounting holes — 4 places c. Extra mounting holes — 4 places 5. Locate the loudspeaker’s grille. 6. Using a #2 Phillips head screwdriver, install the grille with the M4 screws provided. Note: The use of LOCTITE is recommended to prevent grille screws from loosening during use.
  • Page 20: Painting The Grille

    Disconnect Transformer from the AD-C1200 Circuitry If you are connecting the loudspeaker to a 16 ohm system, you must disconnect the transformer. 1. Unplug the two-pin Euro-style plug (J1) on the PCB (Figure 25). 2. Loosen the two M3 wire securing screws using a #1 Phillips head screwdriver and remove the wires. 3.
  • Page 21 Dimensions AD-C800BB 10.9" 11.2" 275.7 283.7 mm 8.0" 0.3" 202.3 11.8" 299 mm Ceiling Cutout Dim = Ø 305 mm AD-C821 11.5" 292.1 mm 11.5" 292 mm Note: The 11.5" measurement is the actual dimension of the hardware. For cutting the mounting hole, refer to the Cut Mounting Hole in Ceiling section in this document.
  • Page 22 Dimensions Continued AD-C1200BB 15.5" 15.0" 14.6" 371 mm 23.0" 584 mm 14.6" 371 mm 17.9" 555 mm 20.4" 518 mm Ceiling Cutout Dim = 376 mm x 376 mm...
  • Page 23: Specifications

    Specifications AD-C820/AD-C800BB AD-C821 AD-C1200/AD-C1200BB System Configuration Passive Passive Frequency Response (-6 dB) 61 Hz – 18 kHz 61 Hz – 18 kHz 42 Hz – 18 kHz Frequency Range (-10 dB) 52 Hz – 18 kHz 52 Hz – 18 kHz 37 Hz –...
  • Page 24: Mailing Address

    © 2010 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and other countries. Loctite is a trademark of Henkel Corporation. Mate-N-Lok is a trademark of Tyco Electronics. 3M and Super 77 are registered trademarks of 3M Company. Plastite is a registered trade mark of REMINC.

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