15″ / 381 mm
Nominal diameter
26 Hz
Resonance
0.44
Q factor
87 dB
Sensitivity
± 14 mm
Linear excursion
1600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.4
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
25.5
Hz
Mechanical quality factor
QMS
6.50
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.44
Large signal parameters
Maximum linear excursion
xmax
14.0
mm
Air volume displaced at xmax
VD
1183
cm³
Power handling
P
800
W
Program power
Pmax
1600
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.4
Ω
Inductance (1kHz, in series)
LE
5.1
mH
VC Diameter
76
mm
Magnet
Force factor (in series)
Bl
22.0
N/A
Motor constant
Bl/√RE
11.9
N/√W
Weight
4.99
kg
Diaphragm
Effective diameter
328
mm
Effective area
SD
845
cm²
Moving mass
MMS
418.9
g
Moving mass (without air load)
MMD
402
g
Suspensions
Stiffness
KMS
10.75
N/mm
Compliance
CMS
93
µm/N
Equivalent volume to the compliance
VAS
94.4
L
Mechanical resistance
RMS
10.33
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Baffle cutout diameter
353
mm
Mounting depth
213
mm
Volume occupied by the driver
5.41
L
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SpeakerbenchSimilar subwoofers to Rockford Fosgate T0D215
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Rockford Fosgate P2D2-122 x 2 Ω
12″Subwoofer
fS
26 Hz
SD
570 cm²
QTS
0.52
xmax
13.3 mm
SPL1W
86 dB
Bl/√RE
7.87
Pmax
800 W
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