16 FRS Series AmplifiersFRS Series AmplifiersAppendix C: Technical InfoTopology&23s #LASS !"&23s #LASS (Cooling6ARIABLE SPEED FANS WITH BACK TO FRONT AIRmOWIndicators3)' 3IGNAL 0RESENT ON EACH CHANNEL/, /VERLOAD ON EACH CHANNEL3IGNAL -ETERS n D" n D" n D" n D" ON EACH CHANNEL0OWER ,%$ ON POWER SWITCHCurrent Consumption (measured at 240 VAC line voltage)