12″ / 300 mm
Nominal diameter
46 Hz
Resonance
0.25
Q factor
97 dB
Sensitivity
± 4.5 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.9
dB
Frequency response
60 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
7.27
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25
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
16
Ω
DC resistance
RE
9.5
Ω
Inductance (1kHz)
LE
1.84
mH
VC Diameter
75
mm
Magnet
Force factor
Bl
22.1
N/A
Motor constant
Bl/√RE
7.17
N/√W
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
46
g
Moving mass (without air load)
MMD
37.2
g
Suspensions
Stiffness
KMS
3.85
N/mm
Compliance
CMS
260
µm/N
Equivalent volume to the compliance
VAS
100
L
Mechanical resistance
RMS
1.83
N·s/m
Dimensions
Nominal diameter
12
″
300
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:
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QSpeakers
SpeakerSim
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SpeakerbenchSimilar woofers to Eighteen Sound 12MB700 16Ω
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15″Woofer
fS
40 Hz
SD
810 cm²
40 - 3000 Hz
QTS
0.24
xmax
8.0 mm
SPL1W
97 dB
Bl/√RE
11
Pmax
1400 W
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13.5″Coaxial
fS
46 Hz
SD
707 cm²
45 - 18000 Hz
QTS
0.26
xmax
8.5 mm
SPL1W
97 dB
Bl/√RE
9.55
Pmax
1000 W
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15″Subwoofer
fS
44 Hz
SD
830 cm²
45 - 2500 Hz
QTS
0.27
xmax
9.3 mm
SPL1W
97 dB
Bl/√RE
11
Pmax
1400 W