Characteristics, Description – BeStar BLS2040-04H18-W550-BOX LF User Manual
Page 2
H
H
Rev.
Date
6
A
2012/04/06
A
B
BLS2040-04H18-W550-BOX LF
Speaker
Approved by:
Note
Drawn
5
4
Drawn by:
Checked by:
Date:
3
2
DRG NO: BS/TES01.1155A
王 平
李红元
2012/04/06
1
Page:02 of 06
A
B
2. Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 20 x 40 x 18(mm)
2. AC Impedance 4
Ω
±15% at 1.0KHz
3. Rated Input Power 2.0W
4. Maximum Input Power 3.0W
5. Resonance Frequency 450Hz
±20%
6. Frequency Response F0~20KHz
7. S.P.L 85±3dB/1W /0.5m at 0.8,1.0,1.2,1.5KHz average
8. T.H.D
≤5% at 2.0W/1KHz
9. Magnet
Ш11Ч1.5mm
10. Buzzes & Rattles Must be normal at sine wave 2.83Vrms
11. Polarity Positive voltage to (+),Diaphragm moves forward
12. Operating Temperature -30~+ 70
°C
13. Storage Temperature -40~+ 85
°C
T
h
is
p
ri
n
t
a
n
d
i
n
fo
rm
a
tio
n
t
he
re
i
n
a
re
p
ro
p
ri
e
ta
ry
t
o
B
e
s
ta
r
E
le
c
tr
o
n
ics
I
ndu
s
tr
y
C
o
.,
L
td.
a
nd
s
h
a
ll
no
t
b
e
u
s
ed
i
n
w
h
o
le
o
r
in
pa
rt
w
ith
ou
t
it
s
w
ri
tt
en
c
on
tent
D
C
E
F
G
D
C
E
F
G
6
5
4
3
2
1
BLS2040-04H18-W550-BOX LF
王文邦
1.Description
1.1 Acoustic component Performance Specification
1.2 The present document specifies performance requirements
for the acoustic characteristics of speaker
Speaker
Mic
Audio
Analyser
Power Amplifier
0.5m
1
W
(2
.0
V
rm
s)
2.2 Test Method
Anechoic chamber
王文邦