MD Lab SW-S12

Subwoofer

12″ / 322 mm
Nominal diameter
39 Hz
Resonance
0.43
Q factor
90 dB
Sensitivity
500 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
89.8
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
39.4
Hz
Mechanical quality factor
QMS
2.47
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.43

Large signal parameters

Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.8
Ω
Inductance (1kHz, estimated)
LE
1.03
mH

Magnet

Force factor
Bl
15.33
N/A
Motor constant
Bl/√RE
7.86
N/√W

Diaphragm

Effective diameter
270
mm
Effective area
SD
574
cm²
Moving mass
MMS
130.2
g
Moving mass (without air load)
MMD
120.5
g

Suspensions

Stiffness
KMS
8.0
N/mm
Compliance
CMS
125
µm/N
Equivalent volume to the compliance
VAS
58.3
L
Mechanical resistance
RMS
13.06
N·s/m

Dimensions

Nominal diameter
12
322
mm
Overall diameter
322
mm
Baffle cutout diameter
288
mm
Overall depth
98
mm
Flange thickness
16
mm
Mounting depth
82
mm
Volume occupied by the driver (estimated)
1.5
L

Export this driver to a simulation software:

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