Tang Band W2-780SD
Full-range
2″ / 51 mm
Nominal diameter
155 Hz
Resonance
0.35
Q factor
87 dB
Sensitivity
± 1 mm
Linear excursion
16 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Frequency response
155 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
155
Hz
Mechanical quality factor
QMS
3.89
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
1.0
mm
Air volume displaced at xmax
VD
1.3
cm³
Power handling
P
8
W
Program power
Pmax
16
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.04
mH
VC Diameter
20
mm
Magnet
Force factor
Bl
3.64
N/A
Motor constant
Bl/√RE
1.49
N/√W
Air gap height
HAG
3
mm
Material
Neodymium
Diaphragm
Effective diameter
41
mm
Effective area
SD
13
cm²
Moving mass
MMS
0.9
g
Moving mass (without air load)
MMD
0.8
g
Material
Polypropylene-Mica
Suspensions
Stiffness
KMS
0.83
N/mm
Compliance
CMS
1208
µm/N
Equivalent volume to the compliance
VAS
0.29
L
Mechanical resistance
RMS
0.22
N·s/m
Surround material
Thermoplastic Elastomer
Dimensions
Nominal diameter
2
″
51
mm
Net weight
0.138
kg
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2″Full-range
fS
160 Hz
SD
13 cm²
160 - 20000 Hz
QTS
0.40
xmax
0.9 mm
SPL1W
86 dB
Bl/√RE
1.42
Pmax
16 W
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2.5″Full-range
fS
139 Hz
SD
17 cm²
139 - 20000 Hz
QTS
0.36
xmax
1.4 mm
SPL1W
86 dB
Bl/√RE
1.51
Pmax
20 W
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2″Full-range
fS
170 Hz
SD
15 cm²
170 - 20000 Hz
QTS
0.32
xmax
1.0 mm
SPL1W
87 dB
Bl/√RE
1.58
Pmax
12 W