Eighteen Sound 12MB1000

Mid Bass

12″ / 315 mm
Nominal diameter
54 Hz
Resonance
0.18
Q factor
98 dB
Sensitivity
± 2.5 mm
Linear excursion
800 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
97.9
dB
Frequency response
80 - 3500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
54.0
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.20
Total quality factor
QTS
0.18

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
133
cm³
Power handling
P
600
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
1.46
mH
VC Diameter
100
mm

Magnet

Force factor
Bl
23.5
N/A
Motor constant
Bl/√RE
9.76
N/√W

Diaphragm

Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
55.5
g
Moving mass (without air load)
MMD
46.7
g

Suspensions

Stiffness
KMS
6.37
N/mm
Compliance
CMS
157
µm/N
Equivalent volume to the compliance
VAS
60
L
Mechanical resistance
RMS
3.14
N·s/m

Dimensions

Nominal diameter
12
315
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
118
mm
Flange thickness
16
mm
Mounting depth
102
mm
Volume occupied by the driver (estimated)
3.2
L
Net weight
9.6
kg
Eighteen Sound 12MB1000 Impedance
Eighteen Sound 12MB1000 SPL
Eighteen Sound 12MB1000 Dimensions

Export this driver to a simulation software:

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