P1S4-15 15" Punch P1 4-Ohm SVC Subwoofer

Rockford Fosgate P1 15” is the first in a family of famous “Punch” subwoofers. The P1S4-15 features a 4-Ohm voice coil, 250 Watts RMS power handling, and can accommodate a grille insert using the included soft touch ABS trim ring.

  • Linear spider with embedded 16 AWG tinsel leads
  • High-temp voice coil with spun-laced Nomex® re-inforcement collar
  • Kevlar fiber reinforced paper cone
  • StampCast basket with integrated spider venting
  • Soft touch ABS trim ring with optional grille
  • Custom 10-AWG nickel plated push terminals
  • Extended pole piece and bumped vented backplate
  • Protective PVC textured magnet cover
Klippel Verified
Flex Fit Basket - Subwoofer

P1S4-15

Rockford Fosgate P1 15" are the first in a family of world famous subwoofers called "The Punch". During their inception in the 1980's, they quickly became "The Woofer of Choice" for fanatic car audio systems, with a continued tradition today. Kevlar fiber reinforced paper cones deliver bass impact you can feel, and our VAST technology increases surface cone area up to 25%. Best in standard sealed and vented enclosures. Includes soft touch ABS tri trim ring.


CEA-2031

CEA-2031

Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.
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Klippel Verified

Klippel Verified

Klippel is a speaker certification program allowing us to deliver the best possible subwoofers.
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Stitched Tinsel Leads

Stitched Tinsel Leads

Improved reliability and performance by reducing fatigue and possible shorting.
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Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

Rockford Fosgate subwoofers use anodized aluminum voice coil formers that provide superior heat...
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Flex Fit Basket - Subwoofer

Flex Fit Basket - Subwoofer

The slot mounted frame pattern allows fine-tuning of the subwoofer's mounting position.
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CEA-2031 Compliant: CEA-2031 Guidelines
Size: 15"
Nominal Impedance: 4-Ohm
Power Handling (Watts RMS): 250 Watts RMS
500 Watts Max
Voice Coil Diameter: 2.0" (51.6 mm)
Magnet Weight (oz): 60 oz. (1.70 kg.)
Speaker Connector: Dual 10 AWG compression
Fs (Hz): 23
Re (Ohms): 3.60
Le (mH): 3.14
Qms: 3.20
Qes: 0.62
Qts: 0.55
Vas (Liters): 191.5
Sd (cm2): 876
SPL (dB @ 1w/1m): 87
Xmax (mm): 9.0
Woofer Displacement (in): 0.31 cu.ft. (8.80 Liters)
Cutout Diameter (in): 13.85 in. (351.8 mm)
Mounting Depth (in): 6.98 in. (177.2 mm)
Shipping Weight: 16.3 Lbs. (7.39 kg)

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Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

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P1G-15

15" Stamped Mesh Grille Insert
MSRP $24.99

read more...
EBP
Amp Power Range
Sealed Recommended Design
This is the optimum recommended sealed woofer enclosure and replicates the optimum enclosure listed in the owner's manual. You may notice slight differences between online information and the owner's manual due to continual improvement on usage of our products.
P1S4-8_P1S8-8_sealed_1.gif
  • All sides use 3/4" (18mm) thick MDF.
  • All box dimensions are external.
  • Dimensions above include Vb + woofer displacement.
    Standard Metric
Vb 1.58 cu. ft. 44.74 Liters
F3 42.40 Hz  
Qtc 1.06  
Height 18.00 in. 45.72 cm
Width 21.00 in. 53.34 cm
Depth 10.00 in. 25.40 cm
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 6.98 in. 17.73 cm
Vd 0.000 cu. ft. 0.000 Liters
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Wire This Woofer
Vented Recommended Design
This is the optimum recommended vented woofer enclosure and replicates the optimum enclosure listed in the owner's manual. You may notice slight differences between online information and the owner's manual due to continual improvement on usage of our products.
P1S4-8_P1S8-8_vented_1.gif
  • All sides use 3/4" (18mm) thick MDF.
  • All box dimensions are external.
  • Dimensions above include Vb + woofer/port displacement.
  • Port diagram for reference only and may require alternate placement.
  • An infrasonic filter is required for reliable performance in vented designs.
    Standard Metric
Vb 2.66 cu. ft. 75.32 Liters
F3 34.50 Hz  
Fb 34.40 Hz  
Height 18.00 in. 45.72 cm
Width 28.00 in. 71.12 cm
Depth 12.00 in. 30.48 cm
Np 1 port  
Dp 4.00 in. diameter 10.16 cm diameter
Lp 10.80 in. long 27.43 cm long
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 6.98 in. 17.73 cm
Vd 0.000 cu. ft. 0.000 Liters
Vp 0.079 cu. ft. 2.224 Liters
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Modify This Box
Wire This Woofer
Infinite Baffle Design
Not Recommended for Infinite Baffle
  • Baffle board uses 3/4" (18mm) thick MDF.
  • Baffle board & cavity air leaks can cause significant performance loss.
  • For optimum results, ensure cavity & baffle board are air tight.
  • An infrasonic filter is required for reliable performance in IB designs.
Do Not Use Infinite Baffle
This woofer is not recommended for Infinite Baffle; it is optimized for the design(s) above.
If you require this type of design, here are some recommendations:
  • Select another Woofer Family (M1, M2, etc).
  • Select another Woofer Series (Marine, Environmental, etc).
  • Select another Woofer Size (10", 12", etc).

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