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Round 10-28mm 29mm above Rectangular Box


Rectangular Speaker Square Speaker

1 Type Dynamic speaker
2 Dimension External diameter 27X20 mm
3 Rated Input Power 2.0 W
4 Max. Input Power 3.0 W for 1 minute.
5 Impedance 4 ohm ± 15% at 2K Hz
6 Resonance Frequency (Fo) 950 Hz ± 20% at Fo, 1V
7 Sensitivity (S.P.L.) 72dB(1W/1m) ± 3 dB at AVE 1.0K,1.2K,1.5K,2.0K Hz
    95dB(2W/0.1m) ± 3dB
8 Frequency Range Fo - 20KHz
9 Total Harmonics Distortion Max. 10% at 1K Hz ,1.0W.
10 Voice Coil Diameter 11.5 mm
11 Magnet Rare earth permanent (Nd-Fe-B) magnet Φ11x1.5mm
12 Weight 4.5g ± 0.5g
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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