Sound Box Square Shape 18x43mm Mylar Speaker 4Ohm 2W

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Model : RB-B18004G-012AR


Type Sound Box Square Shape Mylar Speaker
Dimension Outline Dimension Shall Be As Shown In Fig(1).
Weight Approx  18.7   Grams.
Magnet Material Nd-Fe-B
Impedance 4 ± 15%  Ohm    at 2000Hz. 1V
Power Rating  Normal 2.0W Maximum     2.5W
F0 850±20% Hz    at 1.0V
 S.P.L. 87±3dB/1.0Watt 1.0Meter.   Average At1000,1200,1500,2000 Hz.
Measurement Method Shown In Fig(2).
Frequency Range F~20,000Hz.Average SPL-10dB.  Frequency Response Fig (3).
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 -20°C  to +55°C
Storage Temperature -25 °C  to +65 °C
Reliable Test
Load Test white noise for 96 hours  at 2W 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.

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