Table Of Contents; Contents - Zenith 10K4 User Manual

1 CONTENTS

1 CONTENTS ................................................................................................................................... 2
2 APPROVALS ................................................................................................................................. 4
3 WARNINGS .................................................................................................................................. 4
3.1 Explanation of graphical symbols .................................................................................................... 4
3.1.1 WARNING ......................................................................................................................................... 4
3.1.2 CAUTION .......................................................................................................................................... 4
3.2 Important safety instructions ........................................................................................................... 4
3.3 User responsibility ............................................................................................................................. 5
3.3.1 Mains connection grounding (earthing) ........................................................................................ 5
3.3.2 Speaker output hazard ................................................................................................................... 5
3.3.3 Radio interference. ......................................................................................................................... 5
3.3.4 Speaker damage ............................................................................................................................. 5
3.3.5 Maintenance ................................................................................................................................... 5
4 WELCOME .................................................................................................................................... 6
4.1 Introduction ........................................................................................................................................ 6
4.2 Main features ..................................................................................................................................... 6
4.2.1 Class TD amplifier and Regulated Switch Mode Power Supply (R.SMPS) .................................. 6
4.2.2 Amplifier gain structure .................................................................................................................. 6
4.2.3 Voltage Peak Limiter (VPL) ............................................................................................................. 6
4.2.4 Protection and performance optimisation .................................................................................... 6
4.2.5 Amplifier hot swap modules ........................................................................................................... 7
4.2.6 2Ω load overheat protection .......................................................................................................... 7
5 INSTALLATION ............................................................................................................................. 8
5.1 Unpacking .......................................................................................................................................... 8
5.2 Mounting ............................................................................................................................................ 8
5.2.1 Rear support bracket ...................................................................................................................... 8
5.3 Cooling ............................................................................................................................................... 9
5.3.1 Rack installation ............................................................................................................................. 9
5.3.2 Ventilation ....................................................................................................................................... 9
5.4 Operating voltage ............................................................................................................................ 10
5.5 Grounding (earthing) ....................................................................................................................... 10
6 QUICK GUIDE OVERVIEW ......................................................................................................... 11
6.1 Front panel overview ....................................................................................................................... 11
6.1.1 Front ............................................................................................................................................... 11
6.2 Rear panel overview ........................................................................................................................ 12
6.2.1 Configuration section .................................................................................................................... 13
6.2.1 The DIP-switch features ................................................................................................................ 13
6.2.3 Input and output connectors ........................................................................................................ 13
6.3 Changing the amplifier hot swap modules .................................................................................... 14
7 OPERATION AND PERFORMANCE .......................................................................................... 15
7.1 Introduction ...................................................................................................................................... 15
7.2 Operation precautions .................................................................................................................... 15
7.3 Signal flow and headroom .............................................................................................................. 15
7.3.1 Signal flow block diagram ............................................................................................................ 15
7.3.2 Headroom, sensitivity and VPL/Gain settings ............................................................................ 16
7.4 Audio input and output .................................................................................................................... 17
7.4.1 Balanced input connections ........................................................................................................ 17
7.4.2 Unbalanced input connections .................................................................................................... 17
Zenith 10K4 Amplifier Manual 2