| 
| ITEM |
|
SPECIFICATIONS |
| 1 |
Type |
Dynamic speaker |
| 2 |
Dimension |
External diameter 50 mm |
| 3 |
Rated Input Power |
2.0 W |
| 4 |
Max. Input Power |
3.0 W |
| 5 |
Impedance |
4 ohm ± 15% at 2K Hz. |
| 6 |
Resonance Frequency (Fo) |
200 Hz ± 20% at Fo, 1V |
| 7 |
Sensitivity (S.P.L.) |
82dB(W0.5/m) ± 3 dB at AVE 0.4K,0.6K 0.8K,1.0K. |
| |
|
97dB(2.0W/0.1m) ± 3 dB |
| 8 |
Frequency Range |
Fo – 20KHz |
| 9 |
Total Harmonics Distortion |
Max 10% at 1 KHz,1.5V |
| 10 |
Voice Coil |
Diameter 34.8mm |
| 11 |
Magnet |
Rare earth permanent (NdFeB) magnet Φ32xΦ16x6 mm |
| 12 |
Weight |
22.8g ± 2g |
| 13 |
Appearance |
Should not exist any obstacle to be harmful to normal operation;
damages, cracks, rusts and distortions, etc. |
| 14 |
Operation Test |
Must be normal at program source 2.0W |
| 15 |
Buzz, Rattle, etc. |
Should not be audible at 2.83V sine Wave between Fo to 20KHz |
| 16 |
Polarity |
When positive voltage is applied to the terminal marked (+), diaphragm
should move to the front. |
| 17 |
Terminal Strength |
Capable of withstand 1kg load for 30 seconds without resulting in
any damage or rejection. |
| 18 |
Temperature |
Operating temperature: -20℃ to +60℃ |
| |
|
Storage temperature: -30℃ to +70℃ |
 
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