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RB-40008F-178R-C1

Type:Dynamic Speaker

Weight:Approx 10.3 Grams.

Magnet:Material Nd-Fe-B

Impedance:8 ± 15% Ohm at 1000Hz. 1V

Power Rating:Normal 1.0W Maximum 1.5W

FO:350±100 Hz    

S.P.L.:99±3dB/1.0Watt 0.1Meter.   Average At 1000,1200,1500,2000 Hz.

Distortion:5%  Maximum  At 1000Hz. 1.0W.

Abnormal Sound Test:Must be Normal Tested by 2.83 Volts. Sine wave for 50~5kHz

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


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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 96 hours 

Low Temperature  Test:-20±2 °C 96 hours 

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.


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