Rockford Fosgate PM212S4

Subwoofer

12″ / 305 mm
Nominal diameter
26 Hz
Resonance
0.52
Q factor
83 dB
Sensitivity
± 12 mm
Linear excursion
600 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
83.1
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
25.5
Hz
Mechanical quality factor
QMS
9.00
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.52

Large signal parameters

Maximum linear excursion
xmax
12.0
mm
Air volume displaced at xmax
VD
612
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
51
mm
Former material
Aluminum

Magnet

Force factor
Bl
17.1
N/A
Motor constant
Bl/√RE
9.71
N/√W
Weight
0.08
kg

Diaphragm

Effective diameter
255
mm
Effective area
SD
510
cm²
Moving mass
MMS
324.6
g
Moving mass (without air load)
MMD
316.4
g

Suspensions

Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
44.3
L
Mechanical resistance
RMS
5.78
N·s/m

Dimensions

Nominal diameter
12
305
mm
Baffle cutout diameter
278
mm
Mounting depth
155
mm
Volume occupied by the driver
7.31
L

Export this driver to a simulation software:

WinISDWinISDBasta!Basta!HornrespHornrespQSpeakersQSpeakersSpeakerSimSpeakerSimMfbLabsMfbLabsSpeakerbenchSpeakerbench

Similar subwoofers to Rockford Fosgate PM212S4

JL Audio 10W1v3-2 Subwoofer
10Subwoofer
fS
25 Hz
SD
346 cm²
QTS
0.44
xmax
11.0 mm
SPL1W
84 dB
Bl/√RE
7.23
Pmax
600 W