Instruction/ maintenance manual of the product AD-C821 QSC Audio
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The AD - C820 and AD- C821 are acoustically identical and designed for music playback, public address and distributed audio in applications that require high output from a ceiling mounted loudspeaker . The AcousticDesign™ Series of installation loudspeakers has been designed for trouble free operation and versatility .
AD- C820/C821 Dimensions qscaudio.com Specifications subject to change without notice. 1 67 5 MacAr thur Boulevard • Costa Mesa, C A 92626 • Ph: 800/854-407 9 or 7 1 4/957 -7 100 • Fax: 71 4/7 5.
An important point after buying a device QSC Audio AD-C821 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought QSC Audio AD-C821 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data QSC Audio AD-C821 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, QSC Audio AD-C821 you will learn all the available features of the product, as well as information on its operation. The information that you get QSC Audio AD-C821 will certainly help you make a decision on the purchase.
If you already are a holder of QSC Audio AD-C821, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime QSC Audio AD-C821.
However, one of the most important roles played by the user manual is to help in solving problems with QSC Audio AD-C821. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device QSC Audio AD-C821 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center