细节展示放大镜特效

Portable amplifier devices

  • No:Portable Amplifier
  • Quantity:

      Recommend

    Introduction to the product

    Scope of application

    Can be widely used in a variety of outdoor non-market electricity supply when the implementation of police broadcasting and transmission, such as high-speed traffic police accident scene command, police drills, case handling, government, schools, enterprises, large-scale mining areas, such as anti-seismic, anti-flood, fire and other natural disasters and emergency emergency response.

    Product features

    Front-end control: the use of large-scale integrated circuits and microcontrollers, built-in standard alarm source, can be connected and controlled a variety of sources (such as SD card, USB stick, MP3/4, etc.), with standard 1V line input/output function, can be added to remote control instructions, circuits and so on.

    Signal amplification and processing: the use of digital amplification, excitation and other circuits - high stability, high reliability, high fidelity.

    Power amplification: the use of digital amplification, automatic pressure limit and other circuits - low distortion of sound quality, high resolution, long transmission distance, strong protection capacity.

    High decibel speakers: the use of concave sound film and radon magnetic material - transmission distance,Medium frequency thick, voice clean.

    High-sensitivity microphone: Capacitive microphone with built-in ambient noise cancellation - easier to speak and clearer sound quality.

    Portable metal shell, military-type solemn, stable, generous shape.

    Technical parameters:

    Alarm output power

    150W

    Speaker sound pressure level

    123dB

    When the alarm is used as a megaphone

    1

    Operating voltage

    DC 12V

    2

    Operating current

    12A

    3

    Output rated impedance

    4

    Alarm output power

    150W

    5

    Sine wave output power

    75W

    6

    Microphone sensitivity

    20 mV

    7

    Microphone input impedance

    600Ω

    8

    Amplify sensitivity

    200mV

    9

    Loudspeaker input impedance

    4.7KΩ

    10

    Frequency response

    300Hz~8000Hz

    11

    Distortion

    ≤2%

    12

    Working environment temperature

    -15℃~45℃

    13

    Letter Hybrid

    ≥70dB

    14

    Speaker insulation resistance

    ≥2MΩ

    15

    Speaker harmonic distortion factor

    ≤7%

    16

    Speaker pointing

    80°*50°