12″ / 305 mm
Nominal diameter
89 Hz
Resonance
0.68
Q factor
98 dB
Sensitivity
± 0.8 mm
Linear excursion
300 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
97.6
dB
Frequency response
70 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
89.0
Hz
Mechanical quality factor
QMS
21.11
Electrical quality factor
QES
0.70
Total quality factor
QTS
0.68
Large signal parameters
Maximum linear excursion
xmax
0.8
mm
Air volume displaced at xmax
VD
42
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.8
Ω
Inductance (1kHz)
LE
0.5
mH
VC Diameter
51
mm
Magnet
Force factor
Bl
9.5
N/A
Motor constant
Bl/√RE
4.89
N/√W
Air gap height
HAG
7.9
mm
Weight
1.077
kg
Diaphragm
Effective diameter
257
mm
Effective area
SD
520
cm²
Moving mass
MMS
30
g
Moving mass (without air load)
MMD
21.7
g
Suspensions
Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
39
L
Mechanical resistance
RMS
0.79
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
306
mm
Baffle cutout diameter
281
mm
Overall depth
130
mm
Volume occupied by the driver
2.0
L
Net weight
3.76
kg
Frame material
Pressed steel
Similar speaker drivers to Eminence TEXAS HEAT 4
12″Guitar Speaker
fS
86 Hz
SD
507 cm²
80 - 5100 Hz
QTS
0.65
xmax
0.8 mm
SPL1W
99 dB
Bl/√RE
4.75
Pmax
100 W
12″Guitar Speaker
fS
88 Hz
SD
491 cm²
QTS
0.72
xmax
1.0 mm
SPL1W
99 dB
Bl/√RE
4.49
Pmax
150 W
12″Guitar Speaker
fS
89 Hz
SD
520 cm²
80 - 5000 Hz
QTS
0.77
xmax
0.8 mm
SPL1W
98 dB
Bl/√RE
4.56
Pmax
240 W