Tang Band W4-1798S
Full-range
4″ / 102 mm
Nominal diameter
60 Hz
Resonance
0.3
Q factor
87 dB
Sensitivity
± 3 mm
Linear excursion
80 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.2
dB
Frequency response
60 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
60.0
Hz
Mechanical quality factor
QMS
1.61
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
23
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.01
mH
VC Diameter
50
mm
Magnet
Force factor
Bl
5.75
N/A
Motor constant
Bl/√RE
3.03
N/√W
Air gap height
HAG
12
mm
Material
Neodymium
Diaphragm
Effective diameter
100
mm
Effective area
SD
78
cm²
Moving mass
MMS
10
g
Moving mass (without air load)
MMD
9.6
g
Material
Sandwich
Suspensions
Stiffness
KMS
1.18
N/mm
Compliance
CMS
848
µm/N
Equivalent volume to the compliance
VAS
7.42
L
Mechanical resistance
RMS
2.34
N·s/m
Surround material
Foam Rubber
Dimensions
Nominal diameter
4
″
102
mm
Volume occupied by the driver (estimated)
0.48
L
Net weight
1.193
kg
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SpeakerbenchSimilar speaker drivers to Tang Band W4-1798S
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4″Coaxial
fS
58 Hz
SD
45 cm²
QTS
0.33
xmax
5.0 mm
SPL1W
86 dB
Bl/√RE
2.16
Pmax
60 W
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