BeStar BMS40-12-08H4.9-02 LF - Manual (Page 2)

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Page:02 of 08
Speaker
BMS40-12-08H4.9-02 LF
DRG NO: BS/TES01.1018A
BMS40-12-08H4.9-02 LF
Speaker
Mic Audio
Analyser
Power Amplifier
0.1m
1
W
(2
.8
3
V
rm
s)
Anechoic chamber
博 士 達
莫丽丽 11/07/26 A 王文邦
张秀琴
11/07/26
莫丽丽
1.Characteristics
1.1 Electrical and Mechanical Characteristics
1.2 Test Method
No. Item Specifications
1. Size 40*4.9mm
2. Impedance at 1.0KHz/1V 8 ±1.2 Ω
3. Lowest Resonance frequency 430 ±86Hz
4. Effective frequency range fo...5000Hz
5. Rated input power 1w
6. Maximum input power 1.5w
7. Buzz & Rattle(at sine wave2.83V) must be normal
8. SPL(1W,1m) at 1K Hz 83 ±3dB
9 Polarity Positive voltage to (+),
the diaphragm move forward
10. Frame Material Metal
11. Weight 9.5g
12. Operating temperature -40...+85 °C
13. Storage temperature -40...+85 °C