The Notifier DAA2-7525 is a 75W digital audio amplifier designed for DVC emergency voice communication and fire alarm voice evacuation systems. It operates from 120 VAC and provides 75W total output at 25 VRMS. The amplifier can process digital audio from the DVC audio loop and distribute it through four Class B or two Class A speaker circuits. An optional BDA backup amplifier can provide one-to-one amplifier backup or additional audio channel functionality. The DAA2-7525 is suitable for commercial, industrial, and institutional fire alarm applications requiring integrated emergency voice evacuation.