• K5

    K5

    Frequency Response:100Hz-19kHz(-10dB)120Hz-18kHz(......

  • K7

    K7

    Frequency Response:75Hz-20kHz(-10dB)83Hz-129kHz(±......

  • K8

    K8

    Frequency Response:35Hz-150Hz(-10dB)40Hz-125Hz(±3......

  • K10

    K10

    Frequency Response:33Hz-220Hz(-10dB)38Hz-200Hz(±3......

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