MD Lab SW-ES12

Subwoofer

12″ / 314 mm
Nominal diameter
30 Hz
Resonance
0.65
Q factor
85 dB
Sensitivity
400 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
85.3
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
30.4
Hz
Mechanical quality factor
QMS
2.02
Electrical quality factor
QES
0.95
Total quality factor
QTS
0.65

Large signal parameters

Power handling
P
200
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.8
Ω
Inductance (1kHz, estimated)
LE
0.98
mH

Magnet

Force factor
Bl
9.63
N/A
Motor constant
Bl/√RE
4.94
N/√W

Diaphragm

Effective diameter
250
mm
Effective area
SD
491
cm²
Moving mass
MMS
121.3
g
Moving mass (without air load)
MMD
113.3
g

Suspensions

Stiffness
KMS
4.43
N/mm
Compliance
CMS
226
µm/N
Equivalent volume to the compliance
VAS
77.4
L
Mechanical resistance
RMS
11.48
N·s/m

Dimensions

Nominal diameter
12
314
mm
Overall diameter
314
mm
Baffle cutout diameter
283
mm
Overall depth
102
mm
Flange thickness
30
mm
Mounting depth
72
mm
Volume occupied by the driver (estimated)
1.6
L

Export this driver to a simulation software:

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