12″ / 315 mm
Nominal diameter
44 Hz
Resonance
0.18
Q factor
98 dB
Sensitivity
± 4.5 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.1
dB
Frequency response
58 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
44.0
Hz
Mechanical quality factor
QMS
3.90
Electrical quality factor
QES
0.19
Total quality factor
QTS
0.18
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
239
cm³
Power handling
P
450
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
1.32
mH
VC Diameter
75
mm
Magnet
Force factor
Bl
18.0
N/A
Motor constant
Bl/√RE
8.05
N/√W
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
43
g
Moving mass (without air load)
MMD
34.2
g
Suspensions
Stiffness
KMS
3.29
N/mm
Compliance
CMS
304
µm/N
Equivalent volume to the compliance
VAS
115
L
Mechanical resistance
RMS
3.05
N·s/m
Dimensions
Nominal diameter
12
″
315
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
147
mm
Flange thickness
16
mm
Mounting depth
131
mm
Volume occupied by the driver (estimated)
3.4
L
Net weight
8.3
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to Eighteen Sound 12MB600 8Ω
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12″Coaxial
fS
42 Hz
SD
522 cm²
45 - 18000 Hz
QTS
0.19
xmax
4.0 mm
SPL1W
98 dB
Bl/√RE
7.87
Pmax
700 W
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12″Coaxial
fS
42 Hz
SD
522 cm²
45 - 18000 Hz
QTS
0.19
xmax
4.0 mm
SPL1W
98 dB
Bl/√RE
7.87
Pmax
700 W
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12″Woofer
fS
49 Hz
SD
531 cm²
60 - 5000 Hz
QTS
0.19
xmax
4.5 mm
SPL1W
99 dB
Bl/√RE
7.96
Pmax
600 W