|
ITEM |
|
SPECIFICATIONS |
|
1 |
Type |
Dynamic speaker |
|
2 |
Dimension |
External diameter 50 mm |
|
3 |
Rated Input Power |
0.5 W |
|
4 |
Max. Input Power |
1.0 W for 1 minute. |
|
5 |
Impedance |
8 ohm ± 15% at 1500Hz |
|
6 |
Resonance Frequency (Fo) |
300 Hz ± 20% at Fo, 1V |
|
7 |
Sensitivity (S.P.L.) |
92dB(0.1W/1m) ± 3 dB at AVE 0.6K,0.8K,1.0K,1.2K Hz. |
|
|
|
97dB(0.5W/0.1m) ± 3 dB |
|
8 |
Frequency Range |
Fo – 20KHz |
|
9 |
Total Harmonics Distortion |
Max. 10% at 1K Hz ,0.5W. |
|
10 |
Voice Coil |
Diameter 13.3 mm |
|
11 |
Magnet |
Rare earth permanent (Nd-Fe-B) magnet Φ12.5 x 1.5mm |
|
12 |
Weight |
13.2g ± 1g |
|
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 0.5W |
|
15 |
Buzz, Rattle, etc. |
Should not be audible at 2.0V 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℃ |