12″ / 305 mm
Nominal diameter
101 Hz
Resonance
0.56
Q factor
101 dB
Sensitivity
± 1.24 mm
Linear excursion
150 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
100.5
dB
Frequency response
80 - 4200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
101
Hz
Mechanical quality factor
QMS
11.41
Electrical quality factor
QES
0.59
Total quality factor
QTS
0.56
Large signal parameters
Maximum linear excursion
xmax
1.24
mm
Air volume displaced at xmax
VD
64
cm³
Power handling
P
75
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
0.41
mH
VC Diameter
44
mm
Magnet
Force factor
Bl
15.3
N/A
Motor constant
Bl/√RE
5.86
N/√W
Air gap height
HAG
7.9
mm
Weight
1.588
kg
Diaphragm
Effective diameter
257
mm
Effective area
SD
520
cm²
Moving mass
MMS
32
g
Moving mass (without air load)
MMD
23.7
g
Suspensions
Stiffness
KMS
12.5
N/mm
Compliance
CMS
80
µm/N
Equivalent volume to the compliance
VAS
30.1
L
Mechanical resistance
RMS
1.78
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
306
mm
Baffle cutout diameter
281
mm
Overall depth
132
mm
Volume occupied by the driver
2.25
L
Net weight
4.9
kg
Frame material
Pressed steel
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