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 TD-000264-00-E

EXPLANATION OF SYMBOLS

The term “WARNING!” indicates instructions regarding personal safety. If the instructions are not followed the result may be bodily injury or death.

The term “CAUTION!” indicates instructions regarding possible damage to physical equipment. If these instructions are not followed, it may result in 
damage to the equipment that may not be covered under the warranty.

The term “IMPORTANT!” indicates instructions or information that are vital to the successful completion of the procedure.

The term "NOTE" is used to indicate additional useful information.

The intent of the lightning flash with arrowhead symbol in a triangle is 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 intent of the exclamation point within a triangle is to alert the user to the presence of important safety, and operating and 

maintenance instructions in this manual.

IMPORTANT SAFETY INSTRUCTIONS

1.  Read these instructions
2.  Keep these instructions.
3.  Heed all warnings.
4.  Follow all instructions.
5.  Do not use this apparatus near water.
6.  Clean only with a dry cloth. 
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 specified by the manufacturer.
9.  Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as 

power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to 
rain or moisture, does not operate normally, or has been dropped.

10.  Do not use this apparatus in or near water or liquids.
11.  Adhere to all applicable, local codes.
12.  Consult a licensed, professional engineer when any doubt or questions arise regarding a physical equipment installation.

 WARNRNG!:

 

Before placing, installing, rigging, or suspending any speaker product, inspect all 

hardware, suspension, cabinets, transducers, brackets and associated equipment for damage. Wny 

missing, corroded, deformed or non-load rated component could significantly reduce the strength 

of the installation, placement, or array. Wny 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. Rever exceed 

the rating of the hardware or equipment. Consult a licensed, professional engineer when any doubt 

or questions arise regarding a physical equipment installation.

Maintenance and Repair

Advance technology, e.g., the use of modern materials and powerful electronics, requires specially adapted maintenance and repair methods. To 
avoid a danger of subsequent damage to the apparatus, injuries to persons and/or the creation of additional safety hazards, all maintenance or 
repair work on the apparatus should be performed only by a QSC authorized service station or an authorized QSC International Distributor.  QSC is 
not responsible for any injury, harm or related damages arising from any failure of the customer, owner or user of the apparatus to facilitate those 
repairs.

Summary of Contents for AcousticDesign AD-C81TW

Page 1: ...TD 000264 00 E TD 000264 00 AcousticDesign AD User Manual Model AD C81Tw...

Page 2: ...wer supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 10...

Page 3: ...loudspeakers can be mounted in suspended ceilings as well as non suspended types W e recommend an installation professional be consulted for safety assurance quality installation and optimum acoustic...

Page 4: ...wire used as a secondary support line must be strong enough to support several times the weight of the loudspeaker Do not use rope string twine or other textile based line in the secondary support sy...

Page 5: ...s 90 and is then pulled tight by the screw Figure 5 Recommendations and Important Information Grill removal The grill can be removed by carefully prying around its outer edge or inserting a small meta...

Page 6: ...onnections or pinch the wires Tighten the cover plate s retaining screw 12 Adjust the wiring at the entry point if necessary and properly secure fitting This prevents wire stress and strain from pulli...

Page 7: ...7 TD 000264 00 E Dimensions Figure 7 291 mm 11 5 in 368 mm 14 5 in 9 mm 0 3 in 321 mm 12 6 in...

Page 8: ...al mounting clamps Insert enclosure into cutout and tighten Suspended ceiling C ring and support bars included Connectors Ceramic block connector inputs and terminal block through connectors rated for...

Page 9: ...oll free USA only 800 772 2834 Facsimile Numbers Sales Marketing FAX 714 754 6174 Customer Service FAX 714 754 6173 World Wide Web www qsc com E mail info qsc com service qsc com tech_support qsc com...

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