YD57M17-4F3A

RYD YD57M17-4F3A is a φ57×17mm full-range loudspeaker optimized for voice clarity in consumer electronics, smart home and medical products. Rated input is 3W with 4W maximum, impedance 4Ω, resonance 500Hz, and the response covers Fo~4.5kHz — the band where speech intelligibility matters most — with 87±3dB sensitivity measured at 0.5m/1W. It is a practical choice for intercom handsets, voice notification modules, appliance prompts and bedside call devices. Manufactured under the RYD ISO9001 quality system with RoHS compliant materials. Customization available: sensitivity, impedance, connection style and waterproof or dustproof grade; volume programs may include new development. Share your target application with RYD for a suitable tuning proposal.