1-2

Rated   Input Power

Rated power：5.0W/6.4V

1-3

Max Input Power

Maximum   power： 8.0W/8.9V

1-4

Nominal Impedance

8Ω±15% (AT1.0kHz 1Vrms input)

1-4

DC   Impedance

7.2Ω±15% (AT1.0kHz 1Vrms input)

1-5

Resonance Frequency(fo)

160±20%Hz (1Vrms)

1-6

Sound Pressure Level

85±3dB     1M/1W                       

Average   at 500,1000,3000,5000HZ

1-7

Frequency Range

FB～20KHz （   Average SPL-10 dB）

1-8

NON-LINEAL Distortion Factor

5% Maxium at 1000 HZ   1W/1M

1-9

Buzz Rattle etc.

Must be normal at sine wave 6.4 V at (FB ~ 20KHz)

1-10

Operation Test

Must be normal at sine wave and program source   5W

1-11

Polarity

When a positive current is supplied from the speaker   the terminal marked (＋)    and a negative to the other terminal the diaphragm must move toward   the front．

1-12

Operating   Temp Range

-20℃ ---- +45℃

1-13

Storage   Temp Range

-30℃ ---- +70℃

1-14

Appearance

Should not exist any obstacle to be   harmful to normal operation damages cracks rusts and distortions,etc.