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| ITEM |
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SPECIFICATIONS |
| 1 |
Type |
Dynamic speaker |
| 2 |
Dimension |
External diameter 28 mm |
| 3 |
Rated Input Power |
2.0W |
| 4 |
Impedance |
4ohm ± 15% at 1000Hz |
| 5 |
Resonance Frequency (Fo) |
600 Hz ± 20% at Fo, 1V |
| 6 |
Sensitivity (S.P.L.) |
79 dB(W/m) ± 3 dB at AVE 0.8K, 1.0K,1.2K,1.5 KHz. |
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98dB (2.0W/0.1m) ± 3 dB |
| 7 |
Frequency Range |
Fo – 20KHz |
| 8 |
Distortion |
Less than 10 % at 1000Hz,12.0W |
| 9 |
Max. Input Power |
Must be normal at 2.5W white noise for 1 minute. |
| 10 |
Voice Coil |
Diameter 10.25 mm |
| 11 |
Magnet |
Rare earth permanent (Nd-Fe-B) magnet Φ9.5 x 1.5 mm |
| 12 |
Weight |
6g ± 0.2g |
| 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℃ |
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Storage temperature: -30℃ to +70℃ |
