User manual

CONTENTS CONTENTS
5.2.2 Stacking arrays of AX3210P and AX1118SP systems combined on flying bar KP-
TAX3210 ......................................... 60
5.3 Suspending AX2265P and AX1115SP Systems ........................ 62
5.3.1 The suspension of AX2265P systems with KPTAX2265 flying bar .......... 62
5.3.2 Flying an array of AX2265P and AX1115SP using flying bar KPTAX2265 ..... 69
5.4 Stacking AX2265P and AX1115SP systems .......................... 71
5.4.1 Stacking AX2265P systems on flying bar KPTAX2265 ................ 73
5.4.2 Stacking arrays of AX2265P and AX1115SP systems combined on flying bar KP-
TAX2265 ......................................... 73
5.5 Notes on safety .......................................... 75
5.5.1 Inspection and maintenance .............................. 75
5.6 Responsibility ........................................... 75
5.7 What you need to do ....................................... 76
5.8 What you need to avoid ..................................... 76
6 Operating guide 77
6.1 Necessary tools ......................................... 77
6.1.1 A PC with Windows Operating System ......................... 77
6.1.2 Cable testing ....................................... 77
6.1.3 Test Signal generator . . . ............................... 78
6.1.4 Real time analyzer and transfer function analyzer ................... 78
6.1.5 Measurement tools for distance and angle ....................... 78
6.2 Components testing ....................................... 78
6.3 System Design .......................................... 79
6.4 Installation of the system .................................... 79
6.4.1 Power up procedure ................................... 79
6.4.2 Adjustment ........................................ 80
6.5 Duringtheshow ......................................... 84
6.5.1 Level adjustment ..................................... 84
6.5.2 Equalization adjustment . . ............................... 85
7 Typical applications 87
7.1 Medium concert system 1 .................................... 87
7.2 Medium concert system 2 .................................... 88
A Vertical Array theory 89
A.1 The Lobing Phenomenon .................................... 89
A.2 Wave Fronts and Source Curvature ............................... 90
B Notes on system measurement 93
B.1 Time-Frequency Relationship . . . ............................... 93
B.2 The Perfect System ....................................... 94
B.3 Measurement Methods ..................................... 94
B.3.1 Wrapped Phase ..................................... 95
B.4 Environmental Reflections .................................... 95
B.5 Selection of a measurement microphone ............................ 96
B.6 Mono or Stereo Measurement? . . ............................... 96
C Useful Formulae and Tables 99
C.1 Calculation of the speed of sound . ............................... 99
C.2 Calculation of wavelength .................................... 99
C.3 Conversion Delay-Distance and Distance-Delay ........................ 100
C.4 Notions of Trigonometry ..................................... 100
C.5 Air attenuation .......................................... 100
iv