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IMPORTANT SAFETY PRECAUTIONS AND EXPLANATION OF SYMBOLS

WARNING! 

1.  Read these instructions. 
2.  Keep these instructions. 
3.  Heed all warnings. 
4.  Follow all instructions. 
5.  Clean only with a dry cloth. 
6.  Install in accordance with QSC Audio Product’s instructions and local building codes. The installation should be done by a licensed 

installation professional.

7.  Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 
8.  Only use attachments/accessories from QSC Audio Products, LLC. 
9.  Use only with mounts or brackets supplied or specified by QSC Audio Products, LLC. 
10. Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any way.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated 
“dangerous” voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans. 

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance 
(servicing) instructions in this manual. 

WARNING! Before placing, installing, rigging, or suspending any speaker product, inspect all hardware, suspension, cabinets, 
transducers, brackets and associated equipment for damage. Any missing, corroded, deformed or non-load rated component 
could significantly reduce the strength of the installation, placement, or array. Any such condition severely reduces the safety of the 
installation and should be immediately corrected. Use only hardware which is rated for the loading conditions of the installation 
and any possible short-term unexpected overloading. Never exceed the rating of the hardware or equipment. Consult a licensed, 
professional engineer when any doubt or questions arise regarding a physical equipment installation. 

Warranty (USA only; other countries, see your dealer or distributor)

Disclaimer

QSC Audio Products, LLC is not liable for any damage to amplifiers, or any other equipment that is caused by negligence or improper installation and/
or use of this loudspeaker product. 

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., 
sales receipt). This warranty provides that the examination of the return product must indicate, in our judgment, a manufacturing defect. This warranty 
does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed 
or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty gives you specific legal rights. This limited warranty is 
freely transferable during the term of the warranty period. Customer may have additional rights, which vary from state to state. 

In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited warranty shall not apply. 
Removal of the serial number on this product, or purchase of this product from an unauthorized dealer, will void this limited warranty. 
Periodically, this warranty is updated. To obtain the most recent version of QSC’s warranty statement, please visit www.qscaudio.com. 
Contact us at 800-854-4079 or visit our web site at www.qscaudio.com. 

© Copyright 2010, QSC Audio Products, LLC 
QSC

®

 is a registered trademark of QSC Audio Products, LLC 

“QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office 
All trademarks are the property of their respective owners. 

Summary of Contents for AD-C series

Page 1: ...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 a...

Page 2: ...ng a physical equipment installation Warranty USA only other countries see your dealer or distributor Disclaimer QSC Audio Products LLC is not liable for any damage to amplifiers or any other equipmen...

Page 3: ...transformer for 16 ohm applications On the AD C1200 tap selection is accomplished using terminal block connectors during installation There is also a connection for bypassing the transformer for 16 o...

Page 4: ...ting 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 Tap switch transforme...

Page 5: ...luded in AD C800BB AD C820 Loudspeaker Baffle a Dual Knockouts and Qty 5 b Ceramic terminal block c Transformer d Mounting straps Qty 4 e Ten pin Mate N Lok e d c b a c a b AD C800BB Back Box a a a a...

Page 6: ...th the AD C821 loudspeaker system AD C800 Rail Kit Sold separately for use with the AD C820 and AD C821 loudspeaker systems AD C800SG RG Loudspeaker Grilles Split Ring Suspended ceiling Tile Rail AD C...

Page 7: ...peaker systems c Crossover network d Installation hook AD C1200 Loudspeaker Baffle Sold separately for use with AD C1200 Loudspeaker Baffle AD C1200BB Back Box d c b a a Dual knockouts and Qty 5 b Mou...

Page 8: ...to be used with 24 600 mm t channel suspended ceiling supports to provide necessary strength for mounting Non suspended Ceilings For other ceiling types the Split Ring bracket is used to reinforce the...

Page 9: ...s Installation There are two methods for installing the AD C821 loudspeaker system into the ceiling using the Mounting Clamps with or without the Split Ring or using the Suspended ceiling Tile Rails w...

Page 10: ...s for the mounting hole to be placed in many positions along the ceiling tile width 2 Insert the Split Ring through the mounting hole by slightly bending the ring apart at the split inserting one end...

Page 11: ...gnal wiring through the cover plate hole with Wire Clamp Fitting making sure there is enough wire to strip tin and install the connector Do not secure the Wire Clamp Fitting at this time 6 Strip the e...

Page 12: ...e gauge is 20 AWG the maximum is 8 AWG 3 Install a Wire Clamp Fitting into the selected knockout holes You can substitute the necessary fitting if the facility s loudspeaker signal wiring is in condui...

Page 13: ...ectors to the crossover points J2 J3 and J4 on the larger PCB Note J2 J3 and J4 are labeled for the proper wire color If the wire colors on the harness are different than the labels one connector is s...

Page 14: ...into the ceiling through the mounting hole or into the AD C800BB back box 3 Tighten each clamp using a 2 Phillips screwdriver 7 in lbs Figure 19 item a Important Excessive torque may cause mounting t...

Page 15: ...her Rotating the grille beyond the constraints of the tether with excessive force can break the tether 6 Optional A drill template and four M4 Plastite screws are provided with the grille assembly for...

Page 16: ...t 78 lbs of the AD C1200BB Figure 10 and the AD C1200 loudspeaker baffle assembly Figure 9 4 Route the facility s loudspeaker signal wires through the knockout hole s and to the ceramic terminal block...

Page 17: ...rt the tinned wires Note Do not remove the two pin Euro style connector J1 plug with pre attached wires 3 Locate the wires coming from the ceramic terminal block in the AD C1200BB back box and strip t...

Page 18: ...e installation hook along the insertion edge of the loudspeaker baffle assembly by hooking it to one edge of the back box and using it to support that edge while completing the assembly Warning Do not...

Page 19: ...rewdriver install the grille with the M4 screws provided Note The use of LOCTITE is recommended to prevent grille screws from loosening during use Note The extra mounting holes shown as item c Figure...

Page 20: ...hten the screws Negative wire goes to the COM connection which is marked with a black dot 5 When you install the loudspeaker baffle assembly into the back box plug this connector into the two pin head...

Page 21: ...e actual dimension of the hardware For cutting the mounting hole refer to the Cut Mounting Hole in Ceiling section in this document 11 8 299 mm 8 0 202 3 mm 10 9 275 7 mm 11 2 283 7 mm 0 3 0 8 mm 11 5...

Page 22: ...21 Dimensions Continued 23 0 584 mm 14 6 371 mm 15 0 381 mm 15 5 394 mm 17 9 555 mm 20 4 518 mm AD C1200BB Ceiling Cutout Dim 376 mm x 376 mm 14 6 371 mm...

Page 23: ...V N A 150 W 75 W 37 5 W 70V 150 W 75 W 37 5 W 18 75 W Agency Listings CE UL 1480 commercial professional use outdoor damp UL 2043 air handling spaces Enclosure Volume 0 6 cu ft 18 L N A 3 1 cu ft 88 L...

Page 24: ...World Wide Web www qscaudio com E mail info qscaudio com service qscaudio com 2010 QSC Audio Products LLC All rights reserved QSC and the QSC logo are registered trademarks of QSC Audio Products LLC...

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