Type Dynamic Speaker
Weight Approx 84 Grams.
Magnet Material Nd-Fe-B
Impedance 8 ± 15% Ohm at 1000Hz. 1V
Power Rating Normal 3.0W Maximum 5..0W
FO 300±20% Hz
S.P.L. 89±3dB/1.0Watt 0.1Meter.Average At1000,1200,1500,2000 Hz.
Distortion:10% Maximum At 1000Hz. 1.0W.
Abnormal Sound Test:Must be Normal Tested by 2.83 Volts. Sine wave for50~5kHz
Polarity:Diaphragm Shall Move Forward When Apply a Positive DC. Red “+” or“ Marked” Terminal
Operating Temperature:-25°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 1.0 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~ + 65 °C 5 Cycles Temperature test.
Dimension
Frequency Response Fig
Frequency Range:F0~20,000Hz.Average SPL-10dB.