Broadcast technology program

  • Unit broadcast system solution

    Unit broadcast system solution

    A unit is a high performance multifunctional office building, in order to ensure the various departments of communication and coordination work line of confiden...

    2017-22-04handler719

  • Conference system audio interference solution

    Conference system audio interference solution

    Conference system signal flowBranch field equipment including conference terminals and related external equipment, equipment types and functions. Audio signal t...

    2017-22-04handler700

  • Haman IP network fault solution

    Haman IP network fault solution

    (about Haman)Pay attention to the official Haman WeChat: WeChat public platform to enter HARMAN to add or scan the two-dimensional code below WeChat.Haman offic...

    2017-22-04handler750

About us

Greatwall Group administrates GUANGZHOU PRECISE SOUND ELECTRONIC MANUFACTORY and GUANGZHOU ZHUNKUAI HARDWARE MANUFACTORY.It designs, manufactures and sells pro-audio products and hardware products. Our products include professional loudspeakers, line array, power amplifiers, mixers, signal processor, amplifier cases, mixer cases, etc.

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Contact us

  • Guangzhou polyacoustic acoustics Trade Co., Ltd.
  • 4408-771-883
  • jusound@greatwallaudio.com
  • Guangzhou City, Panyu District District Shanxi road quasi