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Premium Car Audio Manufacturing Since 2009
ODM & OEM Solutions for Amplifiers, DSP, Subwoofers, and Competition Audio Systems
Manufacturer of high-performance car audio systems under the brands SP Audio and SX Audio, delivering innovation and quality since 2009.
Guangzhou Shengxin Electronics Co., Ltd., also known as Sound & Power Technology Industry Limited, was established in 2009 with a registered capital of USD 1 million. We specialize in the design and manufacturing of Class D car amplifiers and high-performance car speakers.
Our production facilities include AI and SMT & Wave workshops, with 100% 4-hour aging tests on all amplifiers before final assembly. For speakers, we utilize automatic glue machines to ensure consistent quality and durability.
As an ODM-focused company, our experienced engineering team can bring your custom audio designs to life with precision and innovation. Our products are distributed across Europe, South America, Indonesia, Turkey, and other global markets.
Engineered for performance, precision, and power. Explore our range of car audio solutions designed for OEM, ODM, and competition applications.
8 Channel DSP Car Audio Processor
6CH DSP Car Amplifier
DSP Built-In Amplifier
Advanced DSP Processor
Competition Car Amplifier
Super Car Subwoofer
Super Mini Full Range Class D
Mosfet Power Amplifier
6.5" Shallow Coaxial Speaker
Under-Seat Subwoofer Box
3-Way Active Crossover w/ LED
4/3/2 Active Crossover
Our commitment to quality, innovation, and customer collaboration sets us apart in the global car audio market.
100% 4-hour aging test on all amplifiers before shipment ensures reliability and performance.
Experienced engineers ready to bring your custom audio product ideas to life.
AI, SMT, and Wave workshops with automated quality control systems.
Products distributed across Europe, South America, Indonesia, Turkey, and more.
We produce under our own brands SP Audio and SX Audio, and also offer ODM/OEM services for private labeling.
Yes, we specialize in ODM projects. Our experienced engineering team can develop custom amplifiers, speakers, and DSP systems based on your specifications.
All car amplifiers undergo 100% 4-hour aging tests before final assembly. We use automated glue machines for speaker production to ensure consistency.
Our products are distributed in Europe, South America, Indonesia, Turkey, and several other international markets.
MOQ varies by product and customization level. Please contact us directly for specific requirements and pricing.
Interested in our products or ODM services? Visit our official website to learn more and connect with our team.
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