项目Ltem

规格Specifica tion

测试条件Test Conditions

1. 1.         

额定阻抗Rated IMP.

4Q土15%

高于F0的频率上，阻抗最低点900HzThe Lowes t Pos ition Above F0 at900Hz

1. 2.         

额定功率Rated Power

3w

最大功率5WMax. Power

1. 3.         

共振频率Resonance Freq.FO

400Hz土20%

用1.0伏电压在LMS上测试Input 1v in LMS

1. 4.         

频率范围Freq. Range

F0 ~20KHz

平均声压级下降10dB.Output S.P.L.-10dB

1. 5.         

特性灵敏度级Characteristic S.P.L

84dB± 2 dB

Mean value at600,800，1K,1.2K Hz average a1won axis calculated form 1m/ 2v measurement

1. 6.         

谐波失真Harmonic Distortion

≤5%

1. 7.         

纯音检听Sine Wave Tes t

无异常声Norma l

正弦信号:3.7vSinusoidal Signal

1. 8.         

绝缘阻抗lnsulation Impedance

扬声器端子绝缘板与以外金属部分之间有2MQ以上500v

More Than 2MQ 500V Between a Terminal & Bare Metal Section

1. 9.         

耐热试验Hea t Test

16H

70土2 c 20-50%R.H

1. 10.     

耐寒试验Cold Test

16H

-25±3°c

1. 11.     

连续负荷Continuous Load Test

粉红色噪音信号96小时Pink Noise 96 H

试验结束后需满足前7个项目Shall meet item 1-7 after test

1. 12.     

恒温恒湿试验Humidity Test

96H

40±2° c 90-9 5%R.H

1. 13.     

跌落试验Drop Test

无松脱现象No mangle

从1米长的滑板上沿75度角滑下

Coasts from 1 meter long slide along 75angles