Tang Band W57-1781
Subwoofer
5x7″/ 127x178 mm
Nominal size
40 Hz
Resonance
0.27
Q factor
88 dB
Sensitivity
± 3 mm
Linear excursion
100 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.7
dB
Frequency response
40 - 500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
2.12
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.27
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
42
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.38
mH
VC Diameter
39
mm
Magnet
Force factor
Bl
10.35
N/A
Motor constant
Bl/√RE
3.86
N/√W
Air gap height
HAG
6
mm
Material
Ferrite
Diaphragm
Effective diameter
134
mm
Effective area
SD
140
cm²
Moving mass
MMS
20
g
Moving mass (without air load)
MMD
19.1
g
Material
Black Polypropylene-Mica
Suspensions
Stiffness
KMS
1.03
N/mm
Compliance
CMS
975
µm/N
Equivalent volume to the compliance
VAS
26
L
Mechanical resistance
RMS
2.37
N·s/m
Surround material
Rubber
Dimensions
Nominal size
5 x 7
″
127 x 178
mm
Volume occupied by the driver (estimated)
0.76
L
Net weight
1.854
kg
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SD
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SD
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SD
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QTS
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xmax
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