

At Sensor Converge 2025, ADW has stunned the acoustic technology sector with the debut of its revolutionary High-Frequency Compensation Actuator. Built on lead-free piezoelectric ceramic technology, this miniature acoustic engine spans an ultra-wide frequency range of 20kHz–40kHz, reaching the limits of human auditory perception — and solving one of micro speaker design’s most enduring challenges: high-frequency roll-off due to miniaturization.
Traditional dynamic drivers face a critical barrier as they shrink: the smaller the diaphragm, the weaker the high-frequency response. In compact audio systems like TWS earbuds (with drivers under 10 mm in diameter), the sound pressure level above 16kHz drops by over 15dB. This results in missing harmonic overtones, reduced vocal richness, and a flat listening experience.
ADW’s game-changing solution leverages the inverse piezoelectric effect to convert electrical signals into acoustic output, featuring:
⚡Multilayer Lead-Free Ceramic Stack: Advanced fabrication enables micro-scale ceramic layering within the module, maximizing acoustic output in minimal space.
⚡ Ultrafast Transient Response: The actuator responds 3x faster than traditional electromagnetic coils, achieving 0.01 ms transient reaction, ensuring crisp, detailed sound reproduction.
⚡Revolutionary Power Efficiency: Consumes just one-fifth the power of typical tweeter units — extending TWS battery life by 8–10 hours per charge.
More than just performance, ADW’s actuator is built on a fully lead-free platform, meeting stringent international environmental standards including RoHS and REACH. This positions it as a strong candidate for medical-grade and food-grade acoustic components, where safety and sustainability are paramount.
Event: Sensors Converge 2025
Date: June 25–26, 2025
Venue: Santa Clara Convention Center, Santa Clara, CA
Booth: ADW Sensor Corp, Booth #1239
Come discover how ADW is redefining micro-acoustics through innovation in sustainable materials and millimeter-scale engineering.
For further technical details and live demonstrations, we invite you to stop by our booth