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Type:Dynamic Speaker

Weight:Approx  27.7  Grams.

Magnet:Material Nd-Fe-B

Impedance:8± 15%  Ohm    at 1000Hz. 1V

Power Rating:Normal 2.0W Maximum    2.5 W

FO:420±120 Hz    at 1.0V 

S.P.L.:103±3dB/1.0Watt 0.1Meter.   Average At1000,1182,1504,2000 Hz.

Distortion:10%  Maximum  At 1000Hz. 1.0W.

Abnormal Sound Test:Must be Normal Tested by 4.0 Volts. Sine wave for 50~5kHz

Polarity:Diaphragm Shall Move Forward When Apply a Positive DC.  Red “+” or“ Marked” Terminal

Operating Temperature:-25 °C  to +65 °C

Storage Temperature:-25 °C  to +65 °C


Reliable Test

After any following test leave speakers at room temperature for 1 hour, SPL shall not deviate by * 3 db from initial value

Load Test:white  noise for 96 hours  at  2.0 W input power.

High Temperature Test:+65±2 °C  96hours 

Low Temperature  Test:-25±2 °C  96hours 

Humidity Test:+40±2 °C  relative humidity 90~95%R.H  96hours

Vibration Test:Frequency 30 * 15 Hz, Amplitude 1.5 mm for 2 Hours per axis(x. y. z axis)

Temperature Cycle Test:- 25°C + 65 °C   5 Cycles Temperature test.

Salt spray Test:Must be normal steel after Salt spray test 12 hours.


Frequency Response Fig

Frequency Range:F0~8.000Hz.Average SPL-10dB.  

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