• Selectable overhead voltage principle
– All adaptive: The overhead voltage follows 0.6PeakV < signals < 6.2VPeak.
– Semi adaptive: The overhead voltage follows 3.1VPeak < signals < 6.2VPeak.
• Metering 2.2 Vrms
• High and low battery with automatic switching
• Battery supply as low as -10 V
• Only.