PRODUCT BRIEF P1S4-12
PRODUCT BRIEF
2011
P1S4-12
Model: P1S4-12
Type: SVC Subwoofer
Power Rating: 250 Watts (RMS)
Impedance:
4 ohms
Features
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13.31"
[(338.0)]
High modulus Kevlar™ re-inforced paper-pulp cone.
Tear & fatigue resistant poly-cotton spider.
High Density NBR (Nitrile Butadine Rubber) surround.
High temp 2" voice coil with spun-laced Nomex™ insulating re-inforcement collar
Optimized motor magnetics with extended pole and bumped vented backplate.
Fatigue resistant and reduced strain "stitched on" flexible lead wire design.
Proprietary spider venting/cooling technique
Multi-point high-temp/high-strength neck joint bonding technique.
Sturdy 16 guage compound bend frame geometry
Heavy guage proprietary stamped steel frame
Semi-flexible, PVC removable protective motor cover.
Proprietary all metal, radially oriented compression input terminal assembly.
Flex-fit™ Mounting pattern
Soft-touch painted trim ring allows for optional integrated grill
6.83"
[(173.5)]
6"
[(152.4)]
11.22"
[(285.0)]
Recommended Applications
Volume (Vb) Tuning(Fb) System -3dB (F3)
Liters | cu.ft.
Hz
Hz
(Qtc)
43.7
0.88
43.7
Sealed: 28.9 1.02
36.3
33.0
Ported: 50.7 1.79
Enclosure
Port Dia.
in. | cm
3.0
76.2
Port Length
in. | cm
8.1
20.5
Closed Box SPL
Vented Box SPL
Closed Box Impedance
Vented Box Impedance
Closed Box Excursion
Vented Box Excursion
130.0
70
120.0
60
110.0
50
100.0
40
90.0
30
80.0
20
70.0
10
60.0
0
10
100
Frequency (Hz)
Technical Specifications
Voice Coil Diameter:
Voice Coil Height:
Voice Coil Layers:
Magnetic Gap Height:
Linear Excursion, (Xmax):
Maximum Excursion (mech), pk-pk:
Magnet Weight:
Woofer Displacement:
Net Weight:
Power Rating:
2.0
1.10
51.56 inches | mm
27.9 inches | mm
4
layers
0.39
10.0 inches | mm
0.35
9.0 inches | mm
2.05
52.0 inches | mm
45
1.28 oz. | kg
3.2
0.113 liters | cubic ft.
10.1
4.6 lbs. | kg
250
500 RMS | Peak
1000
Impedance (ohms)
Excursion (mm)
SPL (dB)
SPL & Excursion (at 250 Watts) / Impedance (at 1 Watt)
Thiele-Small Specifications
Fs (Hz): 25.0
Re (Ohms): 3.60
Le (mH): 3.0
Qts: 0.48
Qes: 0.56
Qms: 3.40
Cms (mm/N): 0.21
Vas (L): 88.3
Mms (g): 194.9
Mmd (g): 187.5
Rms (kg/s): 9.0
Airload (g): 7.4
No (%): 0.24
SPL (dB - 1W/1M): 86.0
BL (T*M): 14.0
*Xmax10 (mm): 9.4
Sd (cm2): 548
EBP: 45
Krm (mOhms): 0.30
Erm: 1.32
Kxm (mH): 20.0
Exm: 0.82
Rem (Ohms): 30.95
* All parameters are derived using a laser
velocity measurement method and verified with
actual measured Mmd and Re. All dual voice
coil models are wired in series. Xmax10
represents actual effective excursion at <10%
THD.
Above specifications and dimensions comply with the CEA-2031 standard.
RFPB- P1S4-12 (Rev D)
Rockford
Corporation
South
Rockford
Drive
AZAZ• •85281
Rockford
Corporation• •600
600
South
Rockford
Drive• •Tempe,
Tempe,
85281
Specifications subject to change without notice.
15-Nov-10 DK
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