2″ / 51 mm
Nominal diameter
110 Hz
Resonance
0.36
Q factor
80 dB
Sensitivity
± 3 mm
Linear excursion
30 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
80.2
dB
Frequency response
110 - 10000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
110
Hz
Mechanical quality factor
QMS
2.85
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
3.9
cm³
Power handling
P
20
W
Program power
Pmax
30
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.6
Ω
Inductance (1kHz)
LE
0.12
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
5.05
N/A
Motor constant
Bl/√RE
1.97
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
41
mm
Effective area
SD
13
cm²
Moving mass
MMS
2.3
g
Moving mass (without air load)
MMD
2.3
g
Suspensions
Stiffness
KMS
1.09
N/mm
Compliance
CMS
914
µm/N
Equivalent volume to the compliance
VAS
0.22
L
Mechanical resistance
RMS
0.56
N·s/m
Surround material
Santoprene
Dimensions
Nominal diameter
2
″
51
mm
Net weight
0.2
kg
Similar woofers to Tang Band W2-1767S
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
2″Full-range
fS
120 Hz
SD
15 cm²
120 - 12000 Hz
QTS
0.34
xmax
2.0 mm
SPL1W
82 dB
Bl/√RE
2.02
Pmax
20 W
2″Full-range
fS
120 Hz
SD
15 cm²
120 - 15000 Hz
QTS
0.31
xmax
2.0 mm
SPL1W
83 dB
Bl/√RE
2.01
Pmax
20 W