中文人妻熟妇乱又伦精品 _大荫蒂女人毛多高潮_玩弄少妇高潮A片XXX_色综合网天天综合色中文_人妻熟女av_97夜夜澡人人爽人人喊中国片_野花视频在线观看免费最新动漫_亚洲色婷婷婷婷五月_狠狠色狠狠色综合日日五_少妇SPA推油被扣高潮在线观看

Model

UGF-87045P-1

1

Type

Dynamic    Speaker

2

Dimension

Outline Dimension Shall Be As Shown In    Fig(1).

3

Weight

Approx  49  Grams.

4

Magnet 

Material       

Nd-Fe-B

5

Impedance 

45

±    15%  Ohm   

6

Power    Rating 

 Normal

1.0W

Maximum

1.5W

7

FO

253±20% Hz   

8

 S.P.L.

101±3dB/1.0Watt 0.1Meter.    At1000.1200.1500.2000Hz.

Measurement Method    Shown In Fig(2).

9

Frequency    Range

F0~20,000Hz.Average    SPL-10dB. Frequency    Response Fig(3).

10

Distortion

5%    Maximum  At1000Hz. 1.0W

11

Abnormal    Sound Test

Must be    Normal Tested by

6.7

 Volts.Sine wave for50~5kHz

12

Polarity

Diaphragm    Shall Move Forward When Apply a Positive DC.

Red“+”or“Marked”    Terminal

13

OperatingTemperature

-20°C to +50°C

14

Storage    Temperature

-25°C to +55°C

15

Reliable Test

After any    following test leave speakers at room temperature for 1 hour, SPL shall not    deviate by ± 3 db from    initial value

15-1

Load Test

white noise for 96 hours  at     1.0W input power.

15-2

High Temperature Test

+55±2 °C     96hours

15-3

Low Temperature     Test

 -20±2 °C96hours

15-4

Humidity Test

+40±2 °C    relative humidity 90~95%R.H 96hours

15-5

Vibration Test

Frequency 30 ± 15 Hz,    Amplitude 1.5 mm for 2 Hours per axis(x. y. z axis)

15-6

Temperature Cycle test

75 CM free falling on Concrete floor,    10 times.

15-7

Temperature Cycle test

-25°C ~ + 65°C   5 Cycles Temperature test.