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1 CONTENTS .......................................................................................................................................1
2 APPROVALS.....................................................................................................................................2
3 WARNINGS ......................................................................................................................................2
3.1 Explanation of graphical symbols ..............................................................................................2
3.2 WARNING.................................................................................................................................2
3.3 CAUTION ..................................................................................................................................2
3.4 Important Safety Instructions .....................................................................................................2
3.5 User responsibility......................................................................................................................3
3.5.1 Speaker damage..................................................................................................................3
3.5.2 Speaker output hazard ........................................................................................................3
3.5.3 Radio interference ..............................................................................................................3
4 INTRODUCTION..............................................................................................................................4
4.1 Unpacking ..................................................................................................................................4
4.2 Front Panel .................................................................................................................................4
4.3 Rear Panel...................................................................................................................................5
5 REAR PANEL FEATURES ..............................................................................................................6
5.1 Gain switch.................................................................................................................................6
5.1.1 The DIP-switch...................................................................................................................6
5.1.2 Sensitivity...............................................................................................................................6
5.1.3 Options ...............................................................................................................................6
5.2 Link switch .................................................................................................................................6
5.3 Operation modes.........................................................................................................................7
5.3.1 Stereo mode............................................................................................................................7
5.3.2 Note for bench test .............................................................................................................7
5.3.3 Tandem mode.....................................................................................................................7
5.3.4 Bridge mono mode .............................................................................................................7
5.3.5 Bridge mono mode features................................................................................................8
6 INSTALLATION...............................................................................................................................8
6.1 Mounting ....................................................................................................................................8
6.2 Cooling .......................................................................................................................................8
6.3 Operating voltage .......................................................................................................................8
6.4 Denmark: ....................................................................................................................................9
6.5 Grounding...................................................................................................................................9
6.6 Power consumption ....................................................................................................................9
6.6.1 Calculation........................................................................................................................10
7 CONNECTIONS..............................................................................................................................10
7.1 Input connections .....................................................................................................................10
7.1.1 Balanced inputs ................................................................................................................10
7.1.2 Unbalanced inputs ............................................................................................................11
7.2 Connecting speakers.................................................................................................................12
8 OPERATION ...................................................................................................................................12
8.1 Operation precautions...............................................................................................................12
8.2 Powering up – Soft start ...........................................................................................................12
8.3 Input attenuators .......................................................................................................................13
8.4 Indicators..................................................................................................................................13
9 PROTECTION FEATURES............................................................................................................13
9.1.1 Clip Limiter ......................................................................................................................13
9.1.2 Thermal protection ...........................................................................................................14
9.1.3 VHF protection.................................................................................................................14
9.1.4 Short circuit protection.....................................................................................................14
9.1.5 AC mains voltage protection ............................................................................................14
9.1.6 D.C. protection .................................................................................................................14
10 MAINTENANCE.........................................................................................................................15
10.1 Troubleshooting........................................................................................................................15
11 SPECIFICATIONS ......................................................................................................................16
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