Advanced Acoustic Technology Corp.
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Round (10-28mm)
Round (29mm above)
Rectangular
Box / Dual
Micro Speaker : AK-2708TA-0
ITEM
SPECIFICATIONS
1
Type
Dynamic speaker
2
Dimension
External diameter 27 mm
3
Rated Input Power
0.25 W
4
Impedance
8 ohm ± 15% at 1500Hz
5
Resonance Frequency (Fo)
900 Hz ± 20% at Fo, 1V
6
Sensitivity (S.P.L.)
77dB(W/m) ± 3 dB at AVE 1.5K,1.8K,2.0K,2.5K(Hz).
90dB(0.25W/0.1m) ± 3 dB
7
Frequency Range
Fo - 5.3KHz
8
Total Harmonics Distortion
Less than 8 % at 1 KHz ,1.0V
9
Max. Input Power
Must be normal at 0.5W white noise for 1 minute.
10
Voice Coil
Diameter 6.5mm
11
Magnet
Rare earth permanent (Ferrite) magnet Φ16.0 x Φ14.0 x 3.2 mm
12
Weight
10g ± 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 -0.25W
15
Buzz, Rattle, etc.
Should not be audible at 1.41V 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℃
Introduction of Speaker