Tang Band W4-1757SB
Full-range
4″ / 102 mm
Nominal diameter
75 Hz
Resonance
0.46
Q factor
87 dB
Sensitivity
± 3 mm
Linear excursion
60 W
Program Power
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Available on (affiliate link)
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.7
dB
Frequency response
75 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
75.0
Hz
Mechanical quality factor
QMS
1.55
Electrical quality factor
QES
0.65
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
17
cm³
Power handling
P
30
W
Program power
Pmax
60
W
Voice Coil
Nominal impedance
Z
6
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.02
mH
VC Diameter
39
mm
Magnet
Force factor
Bl
4.51
N/A
Motor constant
Bl/√RE
1.91
N/√W
Air gap height
HAG
11
mm
Material
Neodymium
Diaphragm
Effective diameter
85
mm
Effective area
SD
57
cm²
Moving mass
MMS
5
g
Moving mass (without air load)
MMD
4.7
g
Material
Sandwich
Suspensions
Stiffness
KMS
1.1
N/mm
Compliance
CMS
907
µm/N
Equivalent volume to the compliance
VAS
4.19
L
Mechanical resistance
RMS
1.52
N·s/m
Surround material
Foam Rubber
Dimensions
Nominal diameter
4
″
102
mm
Volume occupied by the driver (estimated)
0.14
L
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4″Woofer
fS
70 Hz
SD
57 cm²
70 - 7000 Hz
QTS
0.47
xmax
3.2 mm
SPL1W
86 dB
Bl/√RE
2.25
Pmax
50 W
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4″Full-range
fS
70 Hz
SD
57 cm²
70 - 20000 Hz
QTS
0.37
xmax
3.0 mm
SPL1W
88 dB
Bl/√RE
2.06
Pmax
50 W