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https://www.gonsin.com/products/ceiling-speaker/

Technical Parameters of china ceiling speaker GX-SP105B

Power taps20/10/5/2.5W/8Q
Line voltage100V/70v
Sensitivity (1m,1W)88dB
Frequency response100~20kHz
Dimension (mm)203*145
Hole for mounting170
Material(panel)ABS
Material(cover)IRON
Weight(kg)1.7

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