12″ / 315 mm
Nominal diameter
46 Hz
Resonance
0.19
Q factor
98 dB
Sensitivity
± 4.5 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.5
dB
Frequency response
58 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
4.89
Electrical quality factor
QES
0.19
Total quality factor
QTS
0.19
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
4
Ω
DC resistance
RE
2.7
Ω
Inductance (1kHz)
LE
0.45
mH
VC Diameter
75
mm
Magnet
Force factor
Bl
14.9
N/A
Motor constant
Bl/√RE
9.07
N/√W
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
56
g
Moving mass (without air load)
MMD
47.2
g
Suspensions
Stiffness
KMS
4.67
N/mm
Compliance
CMS
214
µm/N
Equivalent volume to the compliance
VAS
86
L
Mechanical resistance
RMS
3.31
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
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12″Subwoofer
fS
46 Hz
SD
531 cm²
90 - 4000 Hz
QTS
0.20
xmax
5.0 mm
SPL1W
97 dB
Bl/√RE
9.17
Pmax
1000 W
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12″Woofer
fS
50 Hz
SD
522 cm²
50 - 2000 Hz
QTS
0.20
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
8.73
Pmax
800 W
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12″Subwoofer
fS
44 Hz
SD
515 cm²
50 - 2000 Hz
QTS
0.18
xmax
5.3 mm
SPL1W
97 dB
Bl/√RE
9.1
Pmax
900 W