2.1

Rated Impedance

额定阻抗

8Ω±15%

At 1KHz 1.0V

2.2

Resonance Frequency

最低共振周波数

104±20%Hz

At 1.0V

2.3

Rated Power

额定功率

15W

At 11.0V

2.4

Max Power

最大功率

20W

At 12.0V

2.5

Output S.P.L.

出力音压

88±3dB at 0.1m/0.1w

At(1000Hz average)

2.6

Frequency response curve

实效频宽

 F0～20KHz

Deviation-10dB from average S.P.L

2.7

Rub & Buzz

异常音检查

Should not be audible buzz and rattle (无异常声音)

Sine WAVE Between(正弦波入力) At 2.83V/100Hz～2KHz

2.8

Distortion

失真

≤ 5% THD

At 1KHz 1.0m 1.0w

2.9

Polarity

极性

When a positive D.C current is applied to the voice coil terminal marked +，The diaphragm shall move forward.(端子的正极通入电流,振动板向前方运动)

3.1

High temperature test

耐热试验

+40±2℃ duration 72 hours ,then removal back to normal temperature for 2 hours.(+40±2℃，72小时实验后，常温放置2小时。)

3.2

Low temperature test

耐寒试验

-20±2℃ duration 72 hours ,then removal back to normal temperature for 2 hours.(-20±2℃，72小时实验后，常温放置2小时。)

3.3

Humidity test

耐湿试验

Temperature +30±2℃,relative humidity 90%～95%,duration 72hours,then removal back to normal temperature for 2hours.(温度+30±2℃，相对湿度 90%～95%,72 小时实验后，常温放置2小时。)

3.4

Load test

连续负荷试验

Subject samples to White Noise for 72 hours at 3.0W input power must be normal.(白噪声15.0W，连续实验72 小时后无异常。)

3.5

Drop test

跌落试验

 The speaker shall be dropped1 times as shown in the 

figure and Cacophony must be normal        

(如图示 1 次跌落实验后外观和声音无异常)

3.6

In Sulation resistance

绝缘阻抗

A VOLTAGEOF 100V.d.c shall be applied for 1 min between a terminal and a frame,after which measurement shall be made,2 MΩ or MORE

（D．C．100V，1 分钟后端子与支架间2MΩ以上）

3.7

Vibration test ibration

振动试验(捆包状态)

10-55Hz/min

Amplitude:1.5mm

Duration: 2hours each axes

3.8

Storage temperature

储存温度

-20℃ TO +45℃