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High-performance 40mm coaxial speaker with 32Ω impedance, 126dB SPL, 20mW rated power, durable ABS frame, NdFeB magnet, and dual-diaphragm design suitable for earphones, headsets, and compact audio applications
| Specification | Details |
|---|---|
| Driver Size | 40mm + 20mm Coaxial |
| Impedance | 32Ω ±15% (1kHz, 1mW) |
| SPL | 126 ±2dB @ 1kHz, 179mVrms (318EAR) |
| Resonance Frequency | 120Hz ±20% (Free Air) |
| Frequency Response | 50Hz – 10kHz |
| Rated Power | 20mW |
| Maximum Power | 30mW |
| Total Harmonic Distortion | ≤3% (50Hz–8kHz at 1mW/318EAR) |
| Rub & Buzz | No abnormal sound at 0.8Vrms sweep |
| Insulation Impedance | >1MΩ at 50V DC |
| Polarity | DC “+” moves diaphragm forward |
| Net Weight | 15.37g |
| Operating Temperature | −10°C to +65°C |
| Storage Temperature | −10°C to +65°C |
| Frame Material | ABS |
| Diaphragm Material | PEEK + PU/PEN Titanium Coated |
| Magnet Type | NdFeB |
| Voice Coil | CU + CCA |
| PCB Material | Fiberboard, Tin-plated |
| Reliability Tests | Load 96h, Humidity 96h, Drop Test, Vibration, Salt Spray 48h, Temperature Cycle (6 cycles) |
| Packaging | 200 pcs/tray, 10 trays/carton (2000 pcs/carton) |
SpeakerDriver™
by Cockatwo Private Limited
CIN: U62013RJ2023PTC091507
Manufacturing Unit: Yongsheng Industrial Park 523510, Dongshan, Qishi, Dongguan, China