JBL S4Ai, S4VC, S4HC manual C

INTRODUCTION......................................................................................................................................................3
INCLUDED.............................................................................................................................................................4
SPEAKER PLACEMENT.............................................................................................................................................5
LEFT AND RIGHT SPEAKERS..............................................................................................................................5
CENTER CHANNEL SPEAKERS ...........................................................................................................................5
AMBIENT SURROUND SPEAKERS.......................................................................................................................6
5.1-CHANNEL SYSTEMS..........................................................................................................................6
6.1-CHANNEL SYSTEMS..........................................................................................................................6
7.1-CHANNEL SYSTEMS..........................................................................................................................7
S4Ai MODES OF OPERATION ...................................................................................................................7
S4Ai WIRING GUIDE..............................................................................................................................7
WHICH DIFFUSE MODE IS THE RIGHT ONE FOR THE JOB? .............................................................................8
PREPARINGTHE S4Ai FOR THE CORRECT OPERATIONAL MODE........................................................................8
S4Ai ORIENTATION– VERTICAL OR HORIZONTAL..........................................................................................9
S4Ai DUAL-DRIVE MODE......................................................................................................................10
MOUNTING THE SPEAKERS....................................................................................................................................10
SPEAKER-MOUNTING OPTIONS.......................................................................................................................10
REQUIREMENTS FOR MOUNTING.....................................................................................................................11
CONNECTING THE SPEAKERS TO THE REST OF YOUR SYSTEM.......................................................................................13
PREPARINGTHE HOOKUP WIRE .......................................................................................................................13
FINE-TUNING YOUR AUDIO SYSTEM.......................................................................................................................14
ACOUSTICAL PROBLEMS IN LISTENING ROOMS..................................................................................................14
ROOM REFLECTIONS......................................................................................................................................14
EXCESSIVE USE OF ABSORPTIVE MATERIALS......................................................................................................15
”SLAP” ECHOES............................................................................................................................................16
RATTLES.....................................................................................................................................................17
BACKGROUND NOISE....................................................................................................................................17
BACKGROUND-NOISE SOLUTIONS....................................................................................................................18
STANDINGWAVES .......................................................................................................................................18
STANDING-WAVE SOLUTIONS:ROOM RATIOS ...................................................................................................19
STANDING-WAVE SOLUTIONS:SPEAKER PLACEMENT .........................................................................................19
STANDING-WAVESOLUTIONS: ABSORPTION .....................................................................................................19
STANDING-WAVESOLUTIONS: ROOM EQUALIZATION..........................................................................................20
TROUBLESHOOTING...............................................................................................................................................21
SPECIFICATIONS...................................................................................................................................................23
CONTENTS