Rockford Fosgate T1S1-12
Shallow Subwoofer
12″ / 305 mm
Nominal diameter
37 Hz
Resonance
1.06
Q factor
85 dB
Sensitivity
± 15 mm
Linear excursion
1200 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.0
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
37.0
Hz
Mechanical quality factor
QMS
11.22
Electrical quality factor
QES
1.17
Total quality factor
QTS
1.06
Large signal parameters
Maximum linear excursion
xmax
15.0
mm
Air volume displaced at xmax
VD
840
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
1
Ω
DC resistance
RE
1.7
Ω
Inductance (1kHz)
LE
0.31
mH
VC Diameter
76
mm
Magnet
Force factor
Bl
9.3
N/A
Motor constant
Bl/√RE
7.13
N/√W
Weight
0.41
kg
Diaphragm
Effective diameter
267
mm
Effective area
SD
560
cm²
Moving mass
MMS
253.5
g
Moving mass (without air load)
MMD
244.5
g
Suspensions
Stiffness
KMS
13.7
N/mm
Compliance
CMS
73
µm/N
Equivalent volume to the compliance
VAS
32.4
L
Mechanical resistance
RMS
5.25
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Baffle cutout diameter
285
mm
Mounting depth
77
mm
Volume occupied by the driver
1.19
L
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