The FS-7012PA power amplifier with rated output power of 1200 W is designed to be used in conjunction with the FS-7000 Series Voice Evacuation System. Connecting a standby amplifier to the optional YA-7000 amplifier auto switching module installed in the FS-7012PA power amplifier allows the FS-7012PA amplifier to automatically switch over to the standby amplifier when the module detects the power amplifier's failure.