Description, Characteristics – BeStar BLS1818-11-04H09 LF User 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
Drawn by:
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 x18 x 9.0(mm)
2. AC Impedance 4
Ω
±15%(at 2KHz/1Vrms)
3. Rated Input Power 2.0W(2.83Vrms)
4. Maximum Input Power 2.5W(3.16Vrms)
5. Resonance Frequency
520Hz ±
20%
6. Frequency Response F0~20KHz
7. S.P.L
84±3dB/0.3m/1W at 0.6,0.8,1.0,1.2KHz average
8. THD
≤5% (at 1.0KHz/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
±0.3g
Speaker
05/12/10
05/12/10
BLS1818-11-04H09 LF
DRG NO: BS/TES01.513A
BLS1818-11-04H09 LF
Speaker
Mic
Audio
Analyser
Power Amplifier
30cm
1
.0
W
(2
.0
V
rm
s)
2.2 Test Method
Anechoic chamber
博 士 達
王文邦
王文邦
郭 敏
程久生