• DB-202

    DB-202

    Input impedance: 10KΩ -20KΩFrequency response: 2......

  • DB-202II

    DB-202II

    Input impedance: 20KΩ -10KΩFrequency response: 2......

  • DB-302

    DB-302

    Input impedance: 10KΩ -20KΩFrequency response: 2......

  • DB-302II

    DB-302II

    Input impedance: 20KΩ -10ΩFrequency response: 20......

  • DB-403

    DB-403

    Input impedance: 10KΩ -20KΩFrequency response: 2......

  • DB-403II

    DB-403II

    Input impedance: 20KΩ -10KΩFrequency response: 2......

  • DB-503

    DB-503

    Input impedance: 10KΩ -20KΩFrequency response: 2......

  • DB-503II

    DB-503II

    Input impedance: 20KΩ -10KΩFrequency response: 2......

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