R&D Plate

28 years of focus on music innovation,
29 subsidiaries to cover industry chain,
to form exceptionality with outstanding capacity.

Music
development

R&D Plate

R&D Plate

Keeping on Innovation to Survive

Innovation is a footstone for an enterprise’s development and growth. Since its birth, Longjoin has continuously reinforced scientific research and has been paying attention to the transformation of scientific research achievements. It has evolved from an industrial standard follower to a leader and to a maker. 


R&D Plate

R&D Plate segment subsidiary

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  • LongWin Electroacoustic Technology Co., Ltd.

    LongWin Electroacoustic Technology Co., Ltd.

    There is an excellent team of more than ten staffs who are engaged in the R&D of audio products for nearly 20 years. The team consists of: Deputy General Manager, Project Manager, Business Development Manager, Senior Electrical Engineer, Senior Structural Engineer and Engineer Assistant. We have built a multidisciplinary and complementary team with reasonably combined professionals in accordance w

    IntroduceLongWin Electroacoustic Technology Co., Ltd.

    LongWin Electroacoustic Technology Co.,ltd

    There is an excellent team of more than ten staffs who are engaged in the R&D of audio products for nearly 20 years. The team consists of: Deputy General Manager, Project Manager, Business Development Manager, Senior Electrical Engineer, Senior Structural Engineer and Engineer Assistant. We have built a multidisciplinary and complementary team with reasonably combined professionals in accordance with the development and design idea of “concentrate on technology, innovating and originating”. Strengths of the team: development and design of audio produces (such as power amplifier, speaker, sound condole and effector, etc.)

    LongWin Electroacoustic Technology Co., Ltd.
  • AVMEDIA Applied Technology R&D Center

    AVMEDIA Applied Technology R&D Center

    The application technology research group was established to promote the technology innovation of the group and provide new technical support for the survival and development of the group. The center is mainly responsible for the research, integration and innovation of the application technologies needed for the medium and long term development of the group, developing new products which are of br

    IntroduceAVMEDIA Applied Technology R&D Center

    AVM application technology research and Development Center

    The application technology research group was established to promote the technology innovation of the group and provide new technical support for the survival and development of the group. The center is mainly responsible for the research, integration and innovation of the application technologies needed for the medium and long term development of the group, developing new products which are of bright prospect and high competitiveness for a new technology system, increase the company’s sales volume through constant exploration and integration. Moreover, the center introduces and learns from other new technologies, based on which it will create the group’s own leading products and core technologies with proprietary intellectual property rights by innovating. At the same time, the center is also responsible for arranging new technology promotion and application, and promoting the efficient application of innovation results.

    AVMEDIA Applied Technology R&D Center
  • Dongguan Musicrown Electronic Technology Co., Ltd.

    Dongguan Musicrown Electronic Technology Co., Ltd.

    Founded in 2007, Dongguan Musicrown Electronic Technology Co., Ltd. is a high-tech company focusing on technology R&D, product design and marketing in the field of audio. The company mainly develops techniques such as DSP audio signal processing, network audio processing and power amplifying of digital audio, its design covers many fields in audio amplifying system, including digital audio matrix

    IntroduceDongguan Musicrown Electronic Technology Co., Ltd.

    Dongguan Le crown Electronic Technology Co., Ltd

    Founded in 2007, Dongguan Musicrown Electronic Technology Co., Ltd. is a high-tech company focusing on technology R&D, product design and marketing in the field of audio. The company mainly develops techniques such as DSP audio signal processing, network audio processing and power amplifying of digital audio, its design covers many fields in audio amplifying system, including digital audio matrix system, matrix system of network audio media, processor system of DSP digital audio, conference amplification system, wireless speaker microphone, recreational and karaoke system and smart movie system. The company has an excellent team of high efficiency, unity and creativity with the R&D experience of more than 20 years. Also, the company possesses many inventions and utility model patents in the fields of network audio technology and digital DSP audio processing. The mission of the company is to lead the industry technique development, provide quality products and efficient services, and satisfy customer demand continuously. The company provides product design and ODM services for many well-known brands, such as PEAVEY, SAMSON, ALTO, MARANTZ, BIK and MOTIVITY. It also has distributors and customers in many countries and areas of the world, including the US, Canada, Europe, Brazil, South Africa, Japan, Korea, Indonesia, Malaysia, Thailand, Singapore and Vietnam.

    Dongguan Musicrown Electronic Technology Co., Ltd.
  • Dongguan Midiplus Electronic Technology Co., Ltd.

    Dongguan Midiplus Electronic Technology Co., Ltd.

    Dongguan Midiplus Electronic Technology Co., Ltd. was founded in August, 2011 and joined Longjoin Group in 2014. The company is engaged in the comprehensive design of products such as MIDI keyboard, MIDI controller, digital piano, tuner, professional sound card, studio monitor and power amplifier system, aiming to provide integrated services to music lovers with the core idea of “concentrate on R&

    IntroduceDongguan Midiplus Electronic Technology Co., Ltd.

    Dongguan Midiplus Electronic Technology Co., LTD

    Dongguan Midiplus Electronic Technology Co., Ltd. was founded in August, 2011 and joined Longjoin Group in 2014. The company is engaged in the comprehensive design of products such as MIDI keyboard, MIDI controller, digital piano, tuner, professional sound card, studio monitor and power amplifier system, aiming to provide integrated services to music lovers with the core idea of “concentrate on R&D, serve with heart”.

    Dongguan Midiplus Electronic Technology Co., Ltd.

R&D patent

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  • An assembly equipment for key sleeve and Fitting method-patent

    An assembly equipment for key sleeve and Fitting method-patent

    A PCB splitter-Patent

    A PCB splitter-Patent

    An audio video processor - invention patent

    An audio video processor - invention patent

    Split-forming integrated machine--patent

    Split-forming integrated machine--patent

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Music development The latest achievements

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