Type:Dynamic Speaker
Weight:Approx 16 Grams.
Magnet:Material Nd-Fe-B
Impedance:4 ± 15% Ohm at 1500Hz. 1V
Power Rating:Normal 3.0W Maximum 3.5W
FO:450±20% Hz
S.P.L.:98±3dB/1.0Watt 0.1Meter. Average At1,1000,1200,1500,2000 Hz.
Distortion:10% Maximum At 1000Hz. 1.0W.
Abnormal Sound Test:Must be Normal Tested by 3.5 Volts. Sine wave for50~5kHz
Polarity:Diaphragm Shall Move Forward When Apply a Positive DC. Red “+” or“ Marked” Terminal
Operating Temperature:-20°C to +55°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 3 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 96 hours
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.
Dimension
Frequency Response Fig
Frequency Range:F0~5000Hz.Average SPL-10dB.
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