ITEM

SPECIFICATIONS

01

Type

Dynamic speaker

02

Dimension

External diameter 20*14 mm

03

Rated Input Power

0.8W.

04

Max. Input Power

1.0W.

05

Impedance

8 ohm ± 15% at 2000 Hz

06

Resonance Frequency (Fo)

1100 Hz ± 20% at  Fo, 1V

07

Sensitivity (S.P.L.)

92dB(0.8W/0.1m) ± 3 dB

at AVE 0.8K,1.0K,1.2K,1.5K Hz.

08

Frequency Range

Fo – 20K Hz

09

Total Harmonics Distortion

Max. 10% at 1K Hz ,0.8W.

10

Voice Coil

Diameter 8.5 mm

11

Magnet

Rare earth permanent (Ferrite) magnet Φ8.0 x 1.0 mm

12

Weight

1.5g ± 0.3g

13

Appearance

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

14

Operation Test

Must be normal at program source 0.8W

15

Buzz, Rattle, etc.

Should not be audible at 2.53V sine Wave between Fo to 20KHz

16

Polarity

When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.

17

Terminal Strength

Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.

18

Temperature

Operating temperature: -20℃ to +60℃

Storage  temperature: -30℃ to +70℃