1-2

Rated   Input Power

2.0 W

1-3

Max   Input Power

2.5W  

1-4

Nominal Impedance

4 ohms ±15% at 3kHz

1-5

Resonance   Frequency(f0)

850±20%Hz 

1-6

Sound   Pressure Level

96±3dB at 0.1m/1.0W at 2.0KHz 

1-7

Frequency   Range

F0 ~ 20K Hz

1-8

NON-LINEAL   Distortion   Factor

15%   MAX @0.1m /1.0W, at 1KHz

1-9

Rub   & Buzz

Must   be free audible noise (buzzes and rattles)( 300Hz ~ 2KHz frequency range ,input level up to 2.83Vrms, while testing .)

1-10

Operation   Test

Must be normal at sine wave and   program source 2.0 W,

1-11

Polarity

When a positive DC Current is applied   to the voice coil terminal marked +or red ,the diaphragm shall move forward

1-12

Operating Temp Range

-25℃ ---- +85℃

1-13

Storage Temp Range

-30℃ ---- +85℃

1-14

Appearance

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