Notifier NFC-50DA Distributed Audio Amplifier

The Notifier NFC-50DA is a 50-watt distributed (remote) audio amplifier for FirstCommand NFC-50/100 systems. It includes four fully supervised speaker circuits selectable for 25 Vrms or 70.7 Vrms operation and supports Class A (Style Z) or Class B (Style Y) wiring. A built-in power supply and charger supervise local backup batteries (up to two 18 Ah in the cabinet, 35 Ah charging capacity), while data and audio riser connections keep the amplifier under full control and monitoring by the primary console. Installing the optional NFC-CE4 module expands the unit to eight speaker circuits, and up to eight distributed amplifiers, any mix of NFC-50DA, NFC-50/100DA, or NFC-125DA, can be added to a single system for greater audio power and zoning flexibility. Key Specifications: Type: Distributed (remote) audio amplifier for NFC-50/100 console Audio Power: 50 W primary at 25 Vrms or 70.7 Vrms Speaker Circuits: 4 supervised Class A or Class B (expandable to 8 with NFC-CE4) System Capacity: Up to 8 amplifiers per system - max 1,100W and 24 speaker circuits Wiring: Class A (Style Z) or Class B (Style Y) outputs Primary Power: 120 VAC, 60 Hz Battery Support: Charger rated for 7–35 Ah lead-acid; cabinet fits two 18 Ah batteries Compatible Modules & Accessories: NFC-CE6 – Six-circuit speaker expander NFC-50/100 – Primary Emergency Command Center (required controller) NFC-LOC – Local operator console NFC-RPU – Remote page unit NFC-RM – Remote microphone station NFC-BDA-BU – Backup amplifier option for NFC-50/100DA BB-26 – Battery cabinet for two 26 Ah batteries CHG-75 – External battery charger, 25–75 Ah CHG-120 – External battery charger, 25–120 Ah