SDRP50P9-34P30

RYD SDRP50P9-34P30 Φ50mm Large Diaphragm Audio Unit for Consumer Electronics and Smart Home Systems. This Φ49.8×8.6mm receiver features a large diaphragm with voice coil diameter Φ16.79mm, delivering 115±3dB SPL at 34±15%Ω impedance (IEC318 coupler, 0.184V/1mW). Frequency range extends from F0 to 20kHz (average SPL -10dB), with resonance frequency 90Hz in free field. Rated power 30mW (max 50mW), weight 14.5g. SPL bin sorting: Bin A 116–118dB (red dot), Bin B 114–115.99dB (blue dot), Bin C 112–113.99dB (white dot). Operating temperature -25℃ to +60℃. The oversized diaphragm and low 90Hz resonance provide natural tonal balance with deeper bass extension than standard 40mm drivers, suitable for over-ear headphones, smart speaker enclosures, and home audio satellite units. Manufactured under RYD ISO9001 quality system.