When there is a fire or emergency, it can be linked with the fire-fighting linkage control equipment to realize automatic fire-fighting broadcast.
•Two start modes with automatic control and manual control,
•With controlled self-test function (required with HY2722C CD player or HY2722D MP3 recording and playback disc).
•When using a microphone to broadcast, the monitor can be automatically muted to completely eliminate audio feedback.
•When the emergency broadcast control signal is received, the audio output can be automatically adjusted to a predetermined position, independent of the volume potentiometer, eliminating the effects of human operation on the audio output
•With automatic switching between active and standby power, the main power is prioritized.• When the unit malfunctions or an abnormality in the external line causes the unit to be in a fault unrecoverable state, the unit status is sent to other devices.
• Ambient temperature: 0℃～+40C
• Ambient humidity: <90RH (non-condensation)
• AC power supply: AC220V±1015%, 50Hz±1
• Harmonic distortion coefficient: 80Hz～8kHz≤5%
• Output mode: 120V constant voltage
• Frequency characteristics: 80Hz～8kHz (90V ~ 145V)
• Rated output power: 150W/300W/500W
• Noise level: <37mV
• Input impedance: 600Ω Input level: 775mV
• Dimensions: length：482.6mm width:305mm height:88mm (2U)
