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
.png)
.png)
.png)
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:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Rockford Fosgate PM212S4
.png.webp)
12″Subwoofer
fS
26 Hz
SD
510 cm²
QTS
0.52
xmax
12.0 mm
SPL1W
83 dB
Bl/√RE
9.71
Pmax
600 W
.jpg.webp)
10″Subwoofer
fS
26 Hz
SD
356 cm²
22 - 1000 Hz
QTS
0.45
xmax
12.3 mm
SPL1W
85 dB
Bl/√RE
6.11
Pmax
700 W
.jpg.webp)