This device features a self-inspection function, offers two startup methods (manual and automatic control), automatically mutes the monitor when using a microphone for broadcasting to eliminate audio feedback, adjusts audio output to a predetermined position upon receiving an emergency broadcast control signal without volume potentiometer influence, eliminating human operation impact on audio output.
Technical Specification
Main power supply: AC220V (187V~242V), 50Hz
Backup power supply: AC220V (187V~242V), 50Hz
Output power: 150W
Local address: 1~10 (binary encoding, no duplicate code)
Input impedance: 10K
Input level: 775mV
Constant voltage output: 120V
Frequency characteristic: 80Hz~8KHz (90V~145V)
Harmonic distortion: ≤5%
Noise level: <37mV
Dimensions: 483mm×142mm×44mm (length×width×height)
Weight: about 2kg
Operating environment: 0°C~+40°C, ≤95%, without condensation
Fuse: 2A slow blow fuse (Ф5×20)