3″ / 76 mm
Nominal diameter
45 Hz
Resonance
0.48
Q factor
73 dB
Sensitivity
± 7.7 mm
Linear excursion
40 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
72.8
dB
Frequency response
45 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
3.59
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.48
Large signal parameters
Maximum linear excursion
xmax
7.7
mm
Air volume displaced at xmax
VD
21
cm³
Power handling
P
20
W
Program power
Pmax
40
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.15
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
5.88
N/A
Motor constant
Bl/√RE
3.1
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
59
mm
Effective area
SD
27
cm²
Moving mass
MMS
18
g
Moving mass (without air load)
MMD
17.9
g
Suspensions
Stiffness
KMS
1.61
N/mm
Compliance
CMS
622
µm/N
Equivalent volume to the compliance
VAS
0.64
L
Mechanical resistance
RMS
1.41
N·s/m
Dimensions
Nominal diameter
3
″
76
mm
Volume occupied by the driver (estimated)
0.11
L
Net weight
0.311
kg
Similar subwoofers to Tang Band W3-2345S
3″Subwoofer
fS
55 Hz
SD
27 cm²
55 - 2000 Hz
QTS
0.43
xmax
5.0 mm
SPL1W
77 dB
Bl/√RE
2.78
Pmax
30 W
3″Subwoofer
fS
45 Hz
SD
44 cm²
45 - 1000 Hz
QTS
0.46
xmax
7.0 mm
SPL1W
77 dB
Bl/√RE
3.25
Pmax
50 W
3″Subwoofer
fS
45 Hz
SD
44 cm²
45 - 1000 Hz
QTS
0.48
xmax
7.0 mm
SPL1W
77 dB
Bl/√RE
2.98
Pmax
50 W