BeStar BMS1818-11-04H09 LF - Manual (Page 2)

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1.Description
1.1 Acoustic component Performance Specification
1.2 The present document specifies performance requirements
for the acoustic characteristics of speaker
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Drawn Rev. Date Approved by:
Checked by:
Note
Date:
Page:02 of 07
A
2.Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 18 x 18 x 9.0 (mm)
2. AC Impedance 4 Ω ±
15%(at 1KHz)
3. Rated Input Power 2W(2.83Vrms)
4. Maximum Input Power 2.5W(3.16Vrms)
5. Resonance Frequency 550Hz ± 20%
6. Frequency Response F0~20KHz
7. S.P.L 84 ± 3dB/0.1m/0.1W at 0.6,0.8,1.0,1.5KHz average
8. THD ≤ 5% (at 1KHz/0.1W)
9. Buzzes & Rattles Must be normal at sine wave 2.83Vrms
10. Polarity Positive voltage to (+),Diaphragm moves forward
11. Operating Temperature -20~+ 65 ° C
12. Storage Temperature -30~+ 75 ° C
13. Weight 3.1g ± 0.2g
Speaker
05/12/10
05/12/10
朱成兴
BMS1818-11-04H09 LF
DRG NO: BS/TES01.513A
BMS1818-11-04H09 LF
Speaker
Mic Audio
Analyser
Power Amplifier
10cm
0
.1
W
(0
.6
4
V
rm
s)
2.2 Test Method
Anechoic chamber
博 士 達
郭 敏
王善梅 朱成兴