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Dongguan HLH and Industry News


Our speed expansions lead us move to a new location in Dongguan, Guangdong, China. We now are closer to many of our customers and also closer to suppliers and partners. Our office is now located in the Songshanhu Internet of Cars Industry Incubate Base, a perfect place for our company in the exciting automotive related business. Becasue of this change, our company name is also changed to Dongguan HLH Electronics Technologies Co., Ltd.

Our new address is:

Dongguan HLH Electronics Technologies Co., Ltd.
Keji 8th Road
Songshanhu Internet of Cars Industry Incubate Base
Room 201, Building 1
Dongguan, Guangdong 511700

In Chinse our address is:





For three years in a row, HLH will present our latest products at Hong Kong Electronics Fair (2018 Spring Edition). We will demonstrate our latest audio DSP amplifier products, latest technologies, and we like to meet our existing custoers as well as new customers. Contact us to make meeting and demo appointments.


Working with partners, HLH Electronics had major breakthrough by winning a few major automotive OEM sockets. In addition to HLH's existing after-market audio amplifiers markets, winning major OEM sockets have shown HLH's technologies and capabilities are graduately recognized by major OEM manufacturers. Our performance and our quality are becoming the lead in China car audio industy.



Meet us at Hong Kong Electronics Fair (Spring Edition), Booth 3EB06 (Hall 3). We will demonstrate our latest audio DSP amplifier products, the Model D3042 and others.

The convention info:

Dates: April 13th -16th, 2017 (Thursday - Sunday)

Venue: Hong Kong Convention and Exhibition Centre.

            1 Expo Drive, Wanchai, Hong Kong, China


Zhongshan HLH Electronics just released a new car audio amplifier, the Model D3042. The D3042 is a cost-effective compact-size audio amplifier which fits almost all cars. It features Bluetooth mobile apps, iOS and Android. Customers can simply use their mobile phones to tune the amplifiers. It makes individualized car audio experience a true reality. The D3042 supports 4-channel audio inputs and 6-channel audio outputs, with 4-ch power out and 2-ch line out for subwoofers. Each power output channel rates at 30 W RMS with Ref 14.2V. The SNR is 76dB @ 1W output, or 94dB @ 1V RMS Line output, and the THD+N is <0.045% @ 1W 1kHz (Filter Off).

Contact us to find out more about the D3042.



HLH Electronics reached one major milestone by attending the 2016 Hong Kong Electronics Fair. This event expanded our marketing scope to international markets. Working with our strategic partners, at the trade show we demonstrated our latest products to various customers in different regions, North America, Europe, Japan, Asia, and others. We held multiple private meetings with customers. They are very interested in our DSP based audio amplifier solutions. Some visited our booth more than once.


Introducing HLH Audio Model D756 series multichannel audio DSP amplifiers. The D756 supports 4-channel audio inputs and 8-channel audio outputs. Among the 8-ch out, 6 channels are power output with each channel at 75 W RMS @ 4-ohm or 100 W RMS 2-ohm. Two other output channels are analog line outputs designed for subwoofers. The audio DSP software features 25-band signal processing, each channel independently configurable like volume, delay, phase, crossover frequencies, etc. We provide Frequency Equalization (EQ) tools, both graphic equalizer and parametric equalizer (GEQ and PEQ). It makes it very convenient for audio tuning. A pink noise generator is integrated. The amplifier has a SNR of 76dB @ 1W output, or 92dB @ 1V RMS Line output. The system THD+N is less than 0.05% @ 1W 1kHz (Filter Off). To program the amplifier we support a PC tool, plus Bluetooth mobile apps both iOS and Android.

Contact us to find out more about D756.


Because of the wide acceptance of our car audio amplifier products, we at Zhongshan HLH Electronic are enjoying our early successes. To best support our customers we are proactively working on expansions of our production capabilities. Our strategy is on two fronts, both internal and outside. Internally, our seasoned production engineers and skilled factory workers have years of experiences in automotive audio amplifier manufacturing. We are continuing our efforts in this direction. Meanwhile, we are starting working with our strategic partners to support us. The partners we select are all long-standing companies in the industry. We secure their production capabilities in order to meet our the ever-growing demands from customers. For both approaches, we maintain a same high level of quality control process and we honor our quality warranty. Like we said, we are your one-stop vendor of car audio DSP amplifiers.

Soon after the establishment of the company, HLH Electronics is proudly to announce its first major win of Car Audio DSP Amplifiers. The customer is one of the prestige audio companies in China with very strict quality assurance process. We are extremely happy and encouraged with this win. With our current customer engagements, more wins are expected to come very soon.



Zhongshan HLH Electronics Co., Ltd., was formally established. We are a company focusing on automotive audio DSP amplifier and audio DSP processor product lines.

While the car audio industry is rapidly entering DSP based amplifiers, it is hard to find a turnkey solution vendor of such products. It is why we found HLH Electronics. Our goal is to be this vendor to the industry, to provide best-in-class, cost-effective and state-of-the-art DSP audio amplifier products to meet the market demands. The company's core people are all industry veterans with years of direct experience in car audio DSP amplifier products or other audio DSP based products. We have DSP technologists, analog audio experts and production specialists. With this background we are fortunate already in an optimized ecosystem. Our partners range from audio DSP devices and software solutions, audio DSP algorithms, automotive grade audio amplifiers mass productions, to marketing and sales, covering engineering development, product manufacture, to business operations. In summary, we are in a best position to serve our customers.

We look forward to servicing you. Please feel free to contact us, come back to this website to get our updates. Thanks in advance!



New Products







Model D3042

  • Cost-Effective Compact Amp
  • Mobile Apps
  • 4-ch 30W & 2-ch line out
  • ... ...

Read More



Best Seller




Model D7562

  • Best-in-Class Multi-Channel Amp
  • Mobile Apps
  • 6-ch 75W & 2-ch line out
  • ... ...

Read More







HLH logo


Dongguan HLH Electronics, Co., Ltd.


Dongguan HLH Electronics Co., Ltd.

   Keji 8th Road
      Songshanhu Internet of Cars Industry Incubate Base
      Room 201, Building 1
      Dongguan, Guangdong 511700