Tang Band W1-2121S
Full-range
1″ / 25 mm
Nominal diameter
120 Hz
Resonance
0.35
Q factor
78 dB
Sensitivity
± 2.3 mm
Linear excursion
12 W
Program Power
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Available on (affiliate link)
Parts Express
$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
78.2
dB
Frequency response
120 - 15000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
1.33
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
2.3
mm
Air volume displaced at xmax
VD
2.1
cm³
Power handling
P
6
W
Program power
Pmax
12
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.07
mH
VC Diameter
28
mm
Magnet
Force factor
Bl
3.14
N/A
Motor constant
Bl/√RE
1.68
N/√W
Air gap height
HAG
2.3
mm
Material
Neodymium
Diaphragm
Effective diameter
34
mm
Effective area
SD
9.0
cm²
Moving mass
MMS
1.7
g
Moving mass (without air load)
MMD
1.7
g
Material
Aluminium
Suspensions
Stiffness
KMS
1.05
N/mm
Compliance
CMS
949
µm/N
Equivalent volume to the compliance
VAS
0.11
L
Mechanical resistance
RMS
0.95
N·s/m
Surround material
Santoprene
Dimensions
Nominal diameter
1
″
25
mm
Net weight
0.08
kg
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1.5″Full-range
fS
140 Hz
SD
9.1 cm²
200 - 20000 Hz
QTS
0.37
xmax
2.7 mm
SPL1W
80 dB
Bl/√RE
1.47
Pmax
4 W
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2″Woofer
fS
110 Hz
SD
13 cm²
110 - 10000 Hz
QTS
0.36
xmax
3.0 mm
SPL1W
80 dB
Bl/√RE
1.97
Pmax
30 W
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1″Full-range
fS
120 Hz
SD
9.0 cm²
120 - 20000 Hz
QTS
0.33
xmax
1.3 mm
SPL1W
81 dB
Bl/√RE
1.4
Pmax
8 W