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AK-7800 Smart Audio Management Power Amplifier


● This machine adopts high-speed DSP floating-point digital signal processing and noise elimination, acoustic feedback suppression and other algorithms; ● It can achieve a wide range of sound pickup, and at the same time can effectively prevent the howling phenomenon caused by external noise interference and sound feedback, perfectly presenting high-definition pickup effect, which is extremely suitable for classrooms, venues, etc; ● The machine is set to automatically detect the microphone gain and select the microphone to turn on to realize the intelligent selection of one of the four microphones; ● 5-channel microphone balanced/unbalanced input, 1-4-channel microphone 4 choose 1 function independent microphone volume adjustment; Unique 6V and 48V power supply switch; ● Unique wireless microphone priority input socket (with switch), when the wireless microphone is working, other microphones are automatically turned off, more effectively suppressing howling; The microphone adopts composite socket input, providing 6V and 48V power supply for convenient connection of the microphone; ● This machine is equipped with five microphone inputs, three sets of audio inputs, a set of pre-line outputs, a set of recording outputs and two sets of power outputs A and B; ● System recording output RAC interface, volume adjustment output level. High and low tone adjustment for professional mixed types of microphone signals. Professional digital feedback suppression module, through/feedback mode can be converted, panel one-key control feedback suppression and microphone level indication, independent microphone level indicator, monitoring output level at a glance; ● Full Chinese operation interface, easy to understand.

Category:

Voice sound reinforcement series

  • Product Description
  • Detailed parameters
    • Commodity name: AK-7800 Smart Audio Management Power Amplifier
    • Commodity ID: AK-7800 智能音频管理功率放大器

    ● This machine adopts high-speed DSP floating-point digital signal processing and noise elimination, acoustic feedback suppression and other algorithms; ● It can achieve a wide range of sound pickup, and at the same time can effectively prevent the howling phenomenon caused by external noise interference and sound feedback, perfectly presenting high-definition pickup effect, which is extremely suitable for classrooms, venues, etc; ● The machine is set to automatically detect the microphone gain and select the microphone to turn on to realize the intelligent selection of one of the four microphones; ● 5-channel microphone balanced/unbalanced input, 1-4-channel microphone 4 choose 1 function independent microphone volume adjustment; Unique 6V and 48V power supply switch; ● Unique wireless microphone priority input socket (with switch), when the wireless microphone is working, other microphones are automatically turned off, more effectively suppressing howling; The microphone adopts composite socket input, providing 6V and 48V power supply for convenient connection of the microphone; ● This machine is equipped with five microphone inputs, three sets of audio inputs, a set of pre-line outputs, a set of recording outputs and two sets of power outputs A and B; ● System recording output RAC interface, volume adjustment output level. High and low tone adjustment for professional mixed types of microphone signals. Professional digital feedback suppression module, through/feedback mode can be converted, panel one-key control feedback suppression and microphone level indication, independent microphone level indicator, monitoring output level at a glance; ● Full Chinese operation interface, easy to understand.

    ● This machine adopts high-speed DSP floating-point digital signal processing and noise elimination, acoustic feedback suppression and other algorithms;

    ● It can achieve a wide range of sound pickup, and at the same time can effectively prevent the howling phenomenon caused by external noise interference and sound feedback, perfectly presenting high-definition pickup effect, which is extremely suitable for classrooms, venues, etc;

    ● The machine is set to automatically detect the microphone gain and select the microphone to turn on to realize the intelligent selection of one of the four microphones;

    ● 5-channel microphone balanced/unbalanced input, 1-4-channel microphone 4 choose 1 function independent microphone volume adjustment; Unique 6V and 48V power supply switch;

    ● Unique wireless microphone priority input socket (with switch), when the wireless microphone is working, other microphones are automatically turned off, more effectively suppressing howling; The microphone adopts composite socket input, providing 6V and 48V power supply for convenient connection of the microphone;

    ● This machine is equipped with five microphone inputs, three sets of audio inputs, a set of pre-line outputs, a set of recording outputs and two sets of power outputs A and B;

    ● System recording output RAC interface, volume adjustment output level. High and low tone adjustment for professional mixed types of microphone signals. Professional digital feedback suppression module, through/feedback mode can be converted, panel one-key control feedback suppression and microphone level indication, independent microphone level indicator, monitoring output level at a glance;

    ● Full Chinese operation interface, easy to understand.

    Key words:
    • 广州声曼电子
    • 专业音响
    • 会议音响
  • 1. feedback suppression parameters

    frequency response

      125Hz-15KHz

    distortion degree

      <0.1%  1KHz

    Sample Rate

      32KHz

    sex-to-noise ratio

      >90dB

    signal delay

      <11ms

      CMRR

      >25Db(50Hz-20KHz)

     

    2. Ambient Noise Cancellation Parameters

    frequency response

      10Hz-30KHz

    distortion degree

      0.2%  1KHz

    Noise

      <-90dBu

    threshold range

      -80~-20dBu B

    dynamic range

      114Db

    Noise Gate

      <100us

    frequency response

      20Hz-20KHz

    distortion degree

      <0.05%  1KHz

    Input impedance

    Microphone: 47KΩ Line: 10KΩ Music: 10KΩ Far End: 10KΩ

    output impedance

    Recording: 1KΩ Line: 10KΩ

    signal-to-noise ratio

      >100dB

    Rated output power

    2*150W/8Ω

    Power consumption

    ≤ 350W

    Power supply mode

    AC220V/50H, toroidal transformer power supply

    Dimensions (DxWxH)

      340x480x90(mm)

    Net weight

     

Sounord    Professional Audio 

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