Rockford Fosgate P3D2-10

2x2Ω
2x4Ω

Subwoofer

10″ / 254 mm
Nominal diameter
27 Hz
Resonance
0.49
Q factor
82 dB
Sensitivity
± 15.2 mm
Linear excursion
1000 W
Program Power
Rockford Fosgate P3D2-10 SubwooferRockford Fosgate P3D2-10 SubwooferRockford Fosgate P3D2-10 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
82.2
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
26.6
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.49

Large signal parameters

Maximum linear excursion
xmax
15.2
mm
Air volume displaced at xmax
VD
547
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.2
Ω
Inductance (1kHz, in series)
LE
4.5
mH
VC Diameter
64
mm

Magnet

Force factor (in series)
Bl
15.5
N/A
Motor constant
Bl/√RE
8.66
N/√W
Weight
2.3
kg

Diaphragm

Effective diameter
214
mm
Effective area
SD
360
cm²
Moving mass
MMS
243.5
g
Moving mass (without air load)
MMD
238.7
g

Suspensions

Stiffness
KMS
6.8
N/mm
Compliance
CMS
147
µm/N
Equivalent volume to the compliance
VAS
27
L
Mechanical resistance
RMS
6.78
N·s/m

Dimensions

Nominal diameter
10
″
254
mm
Baffle cutout diameter
232
mm
Mounting depth
157
mm
Volume occupied by the driver
1.98
L
Impedance
Step response
Tone Burst
DatasheetDatasheet

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Hertz MPS 250 S2 Subwoofer
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fS
28 Hz
SD
365 cm²
25 - 400 Hz
QTS
0.41
xmax
16.8 mm
SPL1W
83 dB
Bl/√RE
9.91
Pmax
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