2″ / 51 mm
Nominal diameter
160 Hz
Resonance
0.26
Q factor
87 dB
Sensitivity
± 0.75 mm
Linear excursion
20 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
86.7
dB
Frequency response
160 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
160
Hz
Mechanical quality factor
QMS
2.76
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
0.75
mm
Air volume displaced at xmax
VD
1.0
cm³
Power handling
P
10
W
Program power
Pmax
20
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.05
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
5.35
N/A
Motor constant
Bl/√RE
1.99
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
41
mm
Effective area
SD
13
cm²
Moving mass
MMS
1.2
g
Moving mass (without air load)
MMD
1.1
g
Material
Aluminum / Magnesium
Suspensions
Stiffness
KMS
1.09
N/mm
Compliance
CMS
914
µm/N
Equivalent volume to the compliance
VAS
0.22
L
Mechanical resistance
RMS
0.42
N·s/m
Surround material
Thermoplastic Elastomer
Dimensions
Nominal diameter
2
″
51
mm
Similar speaker drivers to Tang Band W2-748SG
2″Full-range
fS
160 Hz
SD
13 cm²
160 - 20000 Hz
QTS
0.29
xmax
1.0 mm
SPL1W
85 dB
Bl/√RE
1.58
Pmax
16 W
2″Full-range
fS
160 Hz
SD
13 cm²
160 - 20000 Hz
QTS
0.30
xmax
1.0 mm
SPL1W
86 dB
Bl/√RE
1.74
Pmax
20 W
2″Full-range
fS
160 Hz
SD
15 cm²
160 - 20000 Hz
QTS
0.30
xmax
1.0 mm
SPL1W
87 dB
Bl/√RE
2.06
Pmax
20 W