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Download QSC CX902 Specifications
Transcript
Table of Contents Distributed line principles ................................................................................................... 3 Sidebar: Ohm’s Law ....................................................................................................................................... 4 Why 70 volts? ................................................................................................................................................. 4 Sidebar: Transforming voltages and impedances ........................................................................................ 5 “Natural” voltages ......................................................................................................................................... 5 Designing the distributed sound system...........................................................................6 Loudspeaker coverage and placement ......................................................................................................... 6 Sidebar: Reverberation and RT60 .................................................................................................................................................................................................. 7 Sidebar: The Inverse Square Law ................................................................................................................. 8 Determining power levels ............................................................................................................................. 9 Calculating total power requirements ....................................................................................................... 11 Fitting amplifier power ................................................................................................................................ 12 Using components with different line voltages ......................................................................................... 13 Sample applications & output configurations ............................................................... 14 Other design considerations ............................................................................................. 16 Speaker transformer saturation ................................................................................................................. 16 Sidebar: Installation tip ............................................................................................................................... 16 Speaker wire loss ........................................................................................................................................ 17 AC current consumption .............................................................................................................................. 19 Thermal losses (heat emissions) ................................................................................................................. 20 System design with CX Series amplifiers ......................................................................21 Features ........................................................................................................................................................ 22 The inner workings ............................................................................................................. 22 Exclusive CX features and accessories ......................................................................... 23 DataPort ....................................................................................................................................................... 23 Accessories .................................................................................................................................................. 23 IT-42 isolation transformer pack ................................................................................................................. 24 Crossover and filter modules ...................................................................................................................... 24 Front & rear panels ............................................................................................................. 25 Specifications ......................................................................................................................28 Address & Telephone Information ................................................................................... 30 1
