Import Balanced Armature Driver Unit Speaker Receiver — Buy in Bulk from Supplier in China

The Sz Series balanced armature driver unit speaker receiver is a miniature electromechanical transducer engineered for premium personal audio applications. This specific unit from Dongguan Kinera Electronic Co., Ltd. measures 5.18mm x 3.60mm x 3.00mm in outline dimensions, with a sensitivity of 102.5 dB at 1000 Hz and an impedance range spanning 3 to 1000 ohms. The balanced armature architecture replaces the traditional dynamic driver voice coil and diaphragm with a pivoted armature positioned between two magnets, enabling faster transient response and lower distortion at equivalent volumes.

Balanced armature drivers utilise a magnetic reed suspended within a static magnetic field; audio current through the voice coil alters the magnetic flux, causing the armature to pivot and drive an acoustic output pin coupled to a diaphragm. This design yields superior midrange and treble articulation compared to dynamic counterparts, though bass extension typically requires multiple armatures in compound configurations. The Sz Series employs this standard balanced armature topology with industrial-grade materials and construction tolerances, suitable for integration into in-ear monitors, hearing aids, and professional communication headsets where space constraints preclude larger driver formats.

Primary buyers include original equipment manufacturers of high-fidelity earphones, pro-audio monitoring systems, and medical hearing instruments. The 5.18mm form factor suits multi-driver configurations where 2-6 armatures per earpiece are common. Importers should confirm with Dongguan Kinera Electronic Co., Ltd. whether the 102.5 dB sensitivity rating is measured at 1mW or a referenced voltage, as this affects amplifier matching and SPL output calculations. Typical trade terms for Chinese acoustic component exports include FOB Shenzhen or Hong Kong, though the precise Incoterms, lead times, and minimum order quantities require direct supplier confirmation.

Dongguan Kinera Electronic Co., Ltd. is located at 5th Floor, Building F, No.129, Xiaotang, Dongguan 523707, Guangdong Province, China. The supplier is classified at imported tier with harbor trust tier, indicating a baseline verification status within the marketplace system. The company lists a response rate of 0.00% with zero average response hours recorded, which suggests either a new listing, limited platform engagement, or data capture at a point of minimal transaction activity. The address places the firm in Dongguan's manufacturing corridor, a region with established supply chains for consumer electronics and acoustic components.

The listing provides no disclosed information regarding year of establishment, production floor space, employee headcount, annual revenue, or named OEM/ODM clientele. No ISO, CE, or other certification documentation is attached to the profile for independent verification. Buyers should conduct direct due diligence including factory audit, sample evaluation, and reference checks before committing to volume orders. The product description references ISO and CE certifications, but these claims require validation against current certificates with matching scope and validity dates.