2″ / 51 mm
Nominal diameter
155 Hz
Resonance
0.75
Q factor
81 dB
Sensitivity
± 0.7 mm
Linear excursion
6 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
81.3
dB
Frequency response
155 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
155
Hz
Mechanical quality factor
QMS
2.84
Electrical quality factor
QES
1.02
Total quality factor
QTS
0.75
Large signal parameters
Maximum linear excursion
xmax
0.7
mm
Air volume displaced at xmax
VD
0.9
cm³
Power handling
P
3
W
Program power
Pmax
6
W
Voice Coil
Nominal impedance
Z
6
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.02
mH
VC Diameter
14
mm
Magnet
Force factor
Bl
2.31
N/A
Motor constant
Bl/√RE
0.976
N/√W
Air gap height
HAG
2
mm
Diaphragm
Effective diameter
41
mm
Effective area
SD
13
cm²
Moving mass
MMS
1
g
Moving mass (without air load)
MMD
1
g
Suspensions
Stiffness
KMS
0.95
N/mm
Compliance
CMS
1056
µm/N
Equivalent volume to the compliance
VAS
0.25
L
Mechanical resistance
RMS
0.34
N·s/m
Dimensions
Nominal diameter
2
″
51
mm
Net weight
0.07
kg
Similar speaker drivers to Tang Band W2-1803S
2″Full-range
fS
153 Hz
SD
13 cm²
160 - 19000 Hz
QTS
0.84
xmax
2.3 mm
SPL1W
80 dB
Bl/√RE
1.17
Pmax
40 W
2″Full-range
fS
186 Hz
SD
12 cm²
200 - 20000 Hz
QTS
0.72
xmax
1.7 mm
SPL1W
82 dB
Bl/√RE
1.04
Pmax
30 W
2″Full-range
fS
164 Hz
SD
13 cm²
120 - 20000 Hz
QTS
0.59
xmax
0.9 mm
SPL1W
82 dB
Bl/√RE
1.38
Pmax
10 W