12″ / 300 mm
Nominal diameter
49 Hz
Resonance
0.19
Q factor
99 dB
Sensitivity
± 4.5 mm
Linear excursion
600 W
Program Power
.jpg)
Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.7
dB
Frequency response
60 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
4.70
Electrical quality factor
QES
0.20
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
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
75
mm
Winding material
Aluminum
Magnet
Force factor
Bl
17.8
N/A
Motor constant
Bl/√RE
7.96
N/√W
Material
Ferrite
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
41
g
Moving mass (without air load)
MMD
32.2
g
Material
Weather protected
Suspensions
Stiffness
KMS
3.89
N/mm
Compliance
CMS
257
µm/N
Equivalent volume to the compliance
VAS
101
L
Mechanical resistance
RMS
2.69
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
.png)
.png)
.png)
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to Eighteen Sound 12MB700
.png.webp)
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
.jpg.webp)
12″Mid Bass
fS
52 Hz
SD
530 cm²
60 - 6000 Hz
QTS
0.20
xmax
5.0 mm
SPL1W
99 dB
Bl/√RE
8.05
Pmax
700 W
.png.webp)
12″Mid Bass
fS
51 Hz
SD
522 cm²
50 - 4000 Hz
QTS
0.18
xmax
2.8 mm
SPL1W
99 dB
Bl/√RE
7.93
Pmax
500 W