<---->
The RD4019-01 is a 40mm dynamic speaker driver unit featuring a 16Ω impedance and 20mW rated power, designed for high-fidelity headphone applications. Built with a PET diaphragm and NdFeB magnet, it delivers powerful sound performance with low distortion and excellent reliability under varied environmental conditions.
| Specification | Details |
|---|---|
| Model | RD4019-01 |
| Driver Diameter | 40mm |
| Impedance | 16Ω ±15% (at 1kHz, 1mW input) |
| Rated Power | 20mW |
| Maximum Power | 30mW |
| Sound Pressure Level (SPL) | 119.6 ±1.5 dB (at 1kHz, 126mVrms, 318EAR) |
| Resonance Frequency | — (Not specified) |
| Frequency Response | Shown in Figure.4 (Tested with 318EAR) |
| Total Harmonic Distortion (THD) | ≤3% (50Hz–8kHz at 1mW, 318EAR) |
| Insulation Resistance | >1 MΩ (at 50V DC) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -10°C to +60°C |
| Net Weight | Approx. 13.8g |
| Diaphragm Material | PET |
| Magnet Type | NdFeB |
| Frame Material | ABS |
| Polarity Marking | “+” marked with colored pen |
| Package | 40 pcs/tray, 25 trays/carton (1000 pcs/carton) |
SpeakerDriver™
by Cockatwo Private Limited
CIN: U62013RJ2023PTC091507
Manufacturing Unit: Yongsheng Industrial Park 523510, Dongshan, Qishi, Dongguan, China