Characteristics, 2 test method digital audio analysis system, 1 electrical and mechanical characteristics – BeStar BLS2040-11-08H8.1 LF User Manual
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1
BLS2040-11-08H8.1 LF
1.2 Test Method
Digital Audio Analysis System
张小红
张小红
李红元
BLS2040-11-08H8.1 LF
09/05/20
09/05/20
王文邦
Speaker
Mic
Audio
Analyser
Power Amplifier
10cm
0
.1
W
(0
.8
9
V
rm
s)
Anechoic chamber
1. Characteristics
1.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 20 x 40 x 8.1 (mm)
2. AC Impedance 8
Ω
± 15% at 1.0KHz
3. Rated Input Power 2.0W
4. Maximum Input Power 2.5W
5. Resonance Frequency 680Hz
± 20%
6. Frequency Response F0~20KHz
7. S.P.L 88
± 3dB/0.1W /0.1m at 0.8,1.0,1.5,2.0KHz average
8. T.H.D
≤
10% (2W/0.5m/F0-6KHz)
9. Buzzes & Rattles Must be normal at sine wave 4.0Vrms
10. Polarity Positive voltage to (+),Diaphragm moves forward
11.
Operating Temperature
-30~+ 70
° C
12.
Storage Temperature
-40~+ 85
° C
13. Weight ~7.5g
± 0.3g