RD4005-07 | 40mm 32Ω Speaker Driver Unit
RD4005-07 is a 40mm 32Ω high-performance headphone speaker driver featuring 126dB SPL, PET diaphragm, NdFeB magnet, and wide frequency response. Suitable for headphones and audio applications.
<---->
- Designed By: SpeakerDriver
- Product ID: RD4005-07
Technical
Specifications
| Specification | Details |
|---|---|
| Model | RD4005-07 |
| Driver Size | 40mm |
| Shape | Round |
| Impedance | 32Ω ±15% (1kHz, 1mW) |
| Sound Pressure Level (SPL) | 126 ±3dB at 1kHz, 179mVrms (711 EAR) |
| Frequency Response | 50Hz – 8kHz |
| Resonance Frequency | 200Hz ±20% (Free Air) |
| Rated Power | 10mW |
| Maximum Power | 30mW (Short-term) |
| Total Harmonic Distortion (THD) | ≤3% (50Hz–8kHz at 1mW, 711 EAR) |
| Insulation Impedance | > 1MΩ at 50V DC |
| Rub & Buzz | No abnormal sound at 0.56Vrms sweep |
| Polarity | “+” voltage causes diaphragm to move forward |
| Net Weight | Approx. 11.8g |
| Operating Temperature | -10°C to +65°C |
| Storage Temperature | -10°C to +65°C |
| Diaphragm Material | PET |
| Frame Material | ABS |
| Magnet | NdFeB |
| Yoke / Plate | SPCC (CR3+) |
| Voice Coil | Copper |
| Package | 200 pcs/tray, 10 trays/carton (2000 pcs/carton) |