SDRP40P9-30P40

RYD SDRP40P9-30P30 Φ40mm Hi-Fi Wideband Sound Driver for Premium Consumer Electronics and Professional Audio. Featuring 124±3dB SPL at 30±15%Ω impedance with 20Hz–40kHz bandwidth (IEC318 coupler, 1mW, 1cm), this receiver delivers high-fidelity performance for demanding audio applications. Rated power 40mW (max 100mW), low resonance frequency F0 110±20%Hz enhances bass extension. Ferrite magnet Φ27×Φ17×4.0mm, voice coil Φ13.28mm, weight 4.5g. SPL bin sorting: Bin A 125–127dB (red dot), Bin B 123–124.99dB (blue dot), Bin C 121–122.99dB (white dot). Operating temperature -20℃ to +60℃. The 110Hz resonance and 124dB sensitivity combination suits high-end headphones, studio reference monitors, and broadcast equipment where accurate low-frequency and vocal reproduction are essential. RoHS compliant materials ensure regulatory compliance.