Liu Gang

In 2001, Hong Kong Tiannengda (International) Electroacoustic Technology Co., Ltd. was established in Hong Kong, and Shenzhen Tiannengda Electroacoustic Technology Co., Ltd. was founded in Shenzhen. In 2008, Shenzhen Yine Sound Engineering Co., Ltd. was set up in Shenzhen as the production and sales arm for Real Sound (Rui’er Zao). With a workforce of over 100 employees, our company is a specialized enterprise dedicated to the research, development, and manufacturing of loudspeaker equipment. Since its inception, leveraging strong capabilities, a solid corporate reputation, precise market positioning, and a technology‑driven philosophy, we have boldly pursued innovation and earned high praise from numerous domestic and international clients. We boast a professional team of electroacoustic R&D experts, along with computer‑aided design, mechanized production, CNC machining centers, and a state‑of‑the‑art automated warehouse. Every component undergoes rigorous testing, and each production step is subject to stringent quality control.

With years of accumulated manufacturing expertise, Real Sound (Rui’er Zao) has established a mature, scientifically sound production system. The company is certified under the ISO 9001 quality management system, holds the 2000 environmental certification, and has obtained approvals for power amplifiers, including CCC, EU CE, and South Korean KEF certifications. Additionally, it boasts a suite of acoustic software tools—such as MLSSA, CLIO, LEAP, LMS, SMARRTPRO, and EASE FOCUS—enabling it to deliver reliable acoustic systems.

The company primarily manufactures Real Sound (Rui’er Sang) professional audio equipment—focusing on high‑end loudspeakers and power amplifiers—and has, in a relatively short period, established a network of product distributors of considerable scale. Its products are exported both domestically and internationally. Real Sound (Rui’er Sang) has earned widespread acclaim worldwide by consistently adhering to the guiding principles of “exploration, practice, and innovation,” developing products that meet rigorous standards, fostering broader business partnerships, and continually providing its collaborators with cutting‑edge technologies, up‑to‑date product information, and comprehensive after‑sales service.

The success of Real Sound (Rui’er Zao) can be summed up in one sentence: it seamlessly integrates a pursuit of Hi‑Fi‑grade sound quality with meticulous, rigorous quality control, thereby delivering greater satisfaction to system integrators and touring performance groups that place utmost importance on technical specifications such as sound pressure level and frequency response.