QSC Audio CX Series - Manual (Page 2)

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Table of Contents
PART 1—CX SERIES USER MANUAL
I. Warning Notices ....................................................................................................................................... 2
Speaker Damage ............................................................................................................................................ 3
Speaker Output Shock Hazard ....................................................................................................................... 3
Rack Mounting Precautions ........................................................................................................................... 3
II. Overall Description ................................................................................................................................... 4
III. Inputs ............................................................................................................................................................ 6
Input Sensitivities .......................................................................................................................................... 6
IV. Outputs ......................................................................................................................................................... 6
V. Controls & Displays ................................................................................................................................... 8
VI. Operation ..................................................................................................................................................... 8
AC Power ....................................................................................................................................................... 8
Operation ....................................................................................................................................................... 8
Troubleshooting ............................................................................................................................................. 9
Open Input Architecture ™ Level I ................................................................................................................. 10
Parallel, Stereo, or Bridged Operation ....................................................................................................... 11
Maximum Long-Term Output Power ........................................................................................................... 13
AC Current Consumption ............................................................................................................................. 13
Heat Emissions ............................................................................................................................................. 14
Protection Circuits ....................................................................................................................................... 15
VII. Specifications .......................................................................................................................................... 16
PART 2—CX APPLICATION GUIDE .................................................................................. 19
VIII. Distributed Lines ..................................................................................................................................... 19
IX. Designing the Distributed Sound System .......................................................................................... 20
Loudspeaker Coverage and Placement ....................................................................................................... 20
Determining Power Levels ........................................................................................................................... 22
Selecting the Amplifier ............................................................................................................................... 23
Using Components with Different Voltages ............................................................................................... 24
X. How Many Speakers? ............................................................................................................................. 25
XI. Other Design Considerations ................................................................................................................ 26
Speaker Transformer Saturation ................................................................................................................ 26
Connecting Both a Distributed Line and a Direct Loudspeaker on One Channel ...................................... 26
Wire Loss ..................................................................................................................................................... 27
AC Current Consumption ............................................................................................................................. 29
Heat Emissions ............................................................................................................................................. 29
XII. Address & Telephone Information ...................................................................................................... 30