• The campus broadcasting system has been successfully applied to primary school in shunde, guangdong

    The campus broad

    Shunde no.1 primary school in guangdong province i......

  • HARMAN's sound broadcasting system has been successfully applied to the five-star conch hotel in guangdong province

    HARMAN's sou

    Guangdong conch international hotel is invested in......

  • HARMAN (Haman) public address system has been successfully applied to Liaoning University of International Business

    HARMAN (Haman) p

    Liaoning University of International Business was ......

  • Fujian Sanming Jiangle Stadium

    Fujian Sanming J

    Fujian Sanming Jiangle stadium in Jiangle County S......

  • Chishui Guizhou vocational senior high school

    Chishui Guizhou

    Chishui City, Guizhou province occupation senior h......

  • The first Hakka culture and art festival in Meizhou

    The first Hakka

    "Hakka in the world, show the world of Hakka&......

  • HARMAN (Haman) brand for Guangzhou WDS Wei emperors fitness pa

    HARMAN (Haman) b

    WDS Wei emperors fitness is a well-known Guangzhou......

  • Zhanjiang BBK Entertainment City

    Zhanjiang BBK En

    ......

  • Zhaoqing Dragon Boat Race

    Zhaoqing Dragon

    "Newpearl summt Cup" eighth Zhaoqing dra......

  • German country concert

    German country c

    Germany is in the middle of europe. North West and......

  • Yue Xin KTV, Guangdong, Heyuan

    Yue Xin KTV, Gua

    ......

  • Sound amplifying sound engineering of "Prague" square system

    Sound amplifying

    Prague, the capital of Czech, is one of the most b......

  • Norway "library" sound reinforcement system

    Norway "lib

    HARMAN professional speakers due to the horn desig......

  • Fujian city in Nanping province to celebrate the 90th anniversary songs

    Fujian city in N

    The afternoon of June 28th, the Nanping Municipal ......

  • Sound reinforcement project of Local Taxation Bureau Conference Hall in Guangzhou Development Zone

    Sound reinforcem

    Yonghe District Development Company of Guangzhou i......

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