We are the Authorized Distributor of UL Listed Notifier Digital PA Amplifiers The DAA2 Series amplifiers are multi-featured amplifiers with digital audio functionality. Each DAA2 is capable of accessing and processing one of up to eight audio channels on the DVC audio loop, amplifying the signal, and distributing it via four Class B or two Class A outputs. A DAA2-50 or DAA2-75 series amplifier is capable of mounting an optional BDA Digital amplifier, which can be used to provide one-to-one amplifier backup, or to support two-channel operation, or increased output wattage to 100W (100W option applies to DAA2-50 series only, other rules apply). The DAA2 has two wire digital audio ports to connect to wire DAL (digital audio loop) segments. Either or both ports may be converted to fibre using fibre option modules. Up to 32 devices, such as DAA2 amplifiers, can be connected to the DAL on one DVC Digital Voice Command unit. DAA2 amplifiers may be mixed with DAX and DAA series amplifiers on the same DAL. An optional Firefighter telephone riser on the DAA2 supports local and network FFT communications. A DAA2 also supports use of an RM-1 remote microphone. DAA2 amplifiers can store backup alarm and trouble messages, and provide an adjustable background music input. There are many models launched by Honeywell Notifier for Advance Digital Amplifier Series, Some of the Amplifier Models are DAA2-5025 which is a 120 VAC Digital Audio Amplifier with 50 W, 25 VRMS, DAA2-5070: having wattage 120 VAC Digital Audio Amplifier with 50 W, 70 VRMS, Another Notifier Latest Controller Model Number is DAA2-5025E: with wattage 220-240 VAC Digital Audio Amplifier 50 W, 25 VRMS, in same Series next Honeywell Notifier Amplifier is DAA2-5070E contains 220-240 VAC Digital Audio Amplifier 50 W, 70VRMS. NOTIFIER 75-WATT DAA2 AMPLIFIERS Honeywell Notifier 75 watt Amplifier series have DAA2-7525 which is 120 VAC Digital Audio Amplifier 75 W, 25 VRMS and DAA2-7525E: 220-240 VAC Digital Audio Amplifier 75 W, 25 VRMS which are Shipped mounted to the chassis.