Rockford Fosgate R1S4-10
Subwoofer
10″ / 257 mm
Nominal diameter
34 Hz
Resonance
0.58
Q factor
86 dB
Sensitivity
± 7 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
33.5
Hz
Mechanical quality factor
QMS
8.55
Electrical quality factor
QES
0.62
Total quality factor
QTS
0.58
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
236
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
2.0
mH
VC Diameter
51
mm
Magnet
Force factor
Bl
10.6
N/A
Motor constant
Bl/√RE
5.67
N/√W
Weight
0.96
kg
Diaphragm
Effective diameter
207
mm
Effective area
SD
337
cm²
Moving mass
MMS
95.2
g
Moving mass (without air load)
MMD
90.7
g
Suspensions
Stiffness
KMS
4.22
N/mm
Compliance
CMS
237
µm/N
Equivalent volume to the compliance
VAS
38.1
L
Mechanical resistance
RMS
2.34
N·s/m
Dimensions
Nominal diameter
10
″
257
mm
Overall diameter
257
mm
Baffle cutout diameter
230
mm
Mounting depth
112
mm
Volume occupied by the driver
1.7
L
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SpeakerbenchSimilar subwoofers to Rockford Fosgate R1S4-10
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10″Subwoofer
fS
33 Hz
SD
346 cm²
20 - 160 Hz
QTS
0.66
xmax
6.3 mm
SPL1W
85 dB
Bl/√RE
6.38
Pmax
500 W
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