Transparent cone 57mm 3w 8 ohm speakers with rohs ce ( H57M08-02 )
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| Speaker | 8 ohm speakers |
| Diameter | 56.9 x 13.5 (H) MM |
| Rated Power | 3.0 watt Max 4.0 watt |
| Nominal Impedance | 8 Ω±15% At 1000 Hz test |
| Lowest Resonance Frequency | 700Hz ± 20% |
| Output Sound Pressure Level | 87± 3db / 0.1 W/894 mv 10 cm Average at 800.1000.1200.1500 HZ |
| Effective Frequency Band | fo -5k Hz Average SPL ±10 dB |
| Distortion | 5% Maxium at 1000 HZ 0.1W/0.1M |
| Pure tone Test | Must be normal at sine wave 4.89 V at 300HZ ~ 3KHz |
| Certificate | ROHS , CE, REACH, ISO9001 |
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