Description, Characteristics – BeStar BMS25-11-04H4.5 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 08
A
2.Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension
Ø 25 x 4.5 (mm)
2. AC Impedance 4
Ω
±15%(at 1KHz/1Vrms)
3. Rated Input Power 1.5W(2.45Vrms)
4. Maximum Input Power 2.0W(2.83Vrms)
5. Resonance Frequency
500Hz ±20%
6. Frequency Response F0~20KHz
7. S.P.L
85±3dB/0.1m/0.1W at F0~2KHz
8. THD
≤2% (at 1.0~10KHz/0.1W)
9. Buzzes & Rattles Must be normal at sine wave 2.45Vrms
10. Polarity Positive voltage to (+),Diaphragm moves forward
11. Operating Temperature -20~+ 70
°C
12. Storage Temperature -40~+ 85
°C
13. Weight ~3.1g
±0.3g
Speaker
2010/10/12
2010/10/12
BMS25-11-04H4.5 LF
DRG NO: BS/TES01.1078A
BMS25-11-04H4.5 LF
Speaker
Mic
Audio
Analyser
Power Amplifier
10cm
0
.1
W
(0
.6
3
V
rm
s)
2.2 Test Method
Anechoic chamber
博 士 達
李红元
王 平
王文邦
王文邦