User guide
1. Important Safety Instructions
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C Series C 88:4, C 68:4, C 48:4, C 28:4 and C 16:4 Operation Manual rev 2.2.3
1.7 User Responsibility
1.7.1 Mains connection grounding
1.7.2 Speaker output hazard on Ampliers
1.7.3 Speaker damage
1.74 Maintenance