12″ / 300 mm
Nominal diameter
55 Hz
Resonance
0.28
Q factor
97 dB
Sensitivity
± 6.5 mm
Linear excursion
700 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.0
dB
Frequency response
53 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
5.15
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
6.5
mm
Air volume displaced at xmax
VD
345
cm³
Power handling
P
450
W
Program power
Pmax
700
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
75
mm
Winding material
Aluminum
Magnet
Force factor
Bl
17.6
N/A
Motor constant
Bl/√RE
7.37
N/√W
Material
Neodymium
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
46
g
Moving mass (without air load)
MMD
37.2
g
Material
Weather protected
Suspensions
Stiffness
KMS
5.5
N/mm
Compliance
CMS
182
µm/N
Equivalent volume to the compliance
VAS
72
L
Mechanical resistance
RMS
3.09
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
140
mm
Flange thickness
9
mm
Mounting depth
131
mm
Volume occupied by the driver (estimated)
2.1
L
Net weight
4.3
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Eighteen Sound 12ND830 8Ω
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14″Subwoofer
fS
51 Hz
SD
700 cm²
55 - 4000 Hz
QTS
0.28
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
9.56
Pmax
1400 W
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12″Mid Bass
fS
55 Hz
SD
522 cm²
55 - 3000 Hz
QTS
0.29
xmax
5.0 mm
SPL1W
96 dB
Bl/√RE
6.8
Pmax
500 W
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12″Coaxial
fS
55 Hz
SD
540 cm²
55 - 22000 Hz
QTS
0.33
xmax
3.0 mm
SPL1W
95 dB
Bl/√RE
7.14
Pmax
500 W