mini digital power amplifier in 2*3W class D amplifier board 2.5~5V USB input power

PRODUCT FEATURES

Excellent noise suppression, in case not connected with the input audio, with an ear trumpet can not hear any noise, two channel stereo, 5V power supply and can output 3W+3W power, can directly drive 4 ohm, 8 ohm speakers, large output power, enough energy, good sound quality. Class D digital power board without LC filtering is unique, USB can directly use the computer's power supply. Double panel wiring, and properly solve the crosstalk caused by ground potential wiring balance and inter channel, ultra micro design, can be easily placed in a variety of digital products inside the small space, high amplification efficiency. All adopt the whole plate welding machine, the welding quality can be better than non manual soldering!



Note: the left and right channel output end of the "negative" can not and together, otherwise it will burn IC, and electricity should be first connected speakers (load).

Rated working voltage of 2.5 ~ 5V, the limit voltage 5.5V.

Hans Innovation Group (HIG) is a registered in Brisbane, Australia, attached to Griffith University high-tech company in Australia, is a doctor and professor and senior engineers and other professionals constitute a team of technological innovation .
　　Shenzhen HanShiXin Technology Development Co., Ltd. (HIG-tech) was set up product design and business development for registered company in Shenzhen China, committed to speaker (Vibration speaker) product development and production.
　　Vibration speaker (Vs) is a new product, the principle and the traditional piston-style speakers and flat speakers (NXT) is different from the structure of speakers, The Vs is driven media surface (desk, glass, cardboard, etc.) to vibration sound. Driven in the Vs, the resonance vibration of the media point to the source surface to the heart, the audio transmission to the surrounding infinite vibration, in the medium to produce uniform strength of two sides of the sound waves, so that the driven side of the desktop media, glass, cardboard and other play the melodious music, of which the wood desktop effects especially good.
　　HIG-tech accumulated many years of industry experience, has acquired the company involved in a number of proprietary subject areas and key technology, first developed in the international community with independent intellectual property rights "Attached active audio vibration sound module," and developed the world"s first production of a number of patents, specifically with the phone (MP3) such use, may be worn as decoration "badge vibration speaker." Which speakers to form new, small and beautiful, mellow sound, whispered Chunhou so loved by the majority of young people, but also as a friend to provide a greater imagination and entertainment space.
　　HIG in the company founder Dr. Hans Tang & Dr. Weidong Guo"s lead, has been dedicated to geotechnical engineering and engineering design platform for large-scale surveys, environmental monitoring, research and development of digital instruments, designed and manufactured the world"s first standard concentration liquid organic gas generator and the world"s leading digital multi-gas calibration smart MEMS gas sensor from (AI MEMS Sensor).
　　HIG can provide customers from product design to production of full service. After constantly updated management ideas and technology structure, has formed a scale, series, personalized R & D and production patterns, fully meet the needs of customers in different directions.