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Variants
Clean, deep low-end and strong output in sealed setups—excellent value and relatively shallow mounting—just verify fit and grille clearance during installation.
Buyer confidence
86%Highlights
- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- StampCast basket with integrated spider venting
- Rubberized ABS trim ring with optional grille
Key specs
Full specs- Power Handling (Watts RMS)
- 250 Watts RMS 500 Watts Max
- Subwoofer Type
- Standard
- Magnet Weight (oz)
- 45 oz. (1.28 kg.)
- Voice Coil Type
- Single Voice Coil
- Nominal Impedance
- 4-Ohm
- Qes
- 0.56
- Fs (Hz)
- 25
- Le (mH)
- 3.01
Key specs
Full specs- Power Handling (Watts RMS)
- 250 Watts RMS 500 Watts Max
- Subwoofer Type
- Standard
- Magnet Weight (oz)
- 45 oz. (1.28 kg.)
- Voice Coil Type
- Single Voice Coil
Highlights
Overview- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- StampCast basket with integrated spider venting
Review highlights
Based on customer reviewsPunchy, musical 12" subwoofer that delivers big bass for the price
Clean, deep low-end and strong output in sealed setups—excellent value and relatively shallow mounting—just verify fit and grille clearance during installation.
What buyers praise
- Great value—loud, deep bass for the price
- Clean, musical low-end; performs well in sealed boxes
What to watch for
- May not fit some dual‑12 enclosures—speaker cutouts can overlap; verify hole spacing before install
Overview
The Rockford Fosgate P1 12" Punch subwoofer (P1S4-12) is a 12-inch, 4‑ohm single-voice-coil driver rated at 250 Watts RMS. It pairs Kevlar-fiber reinforced paper cone construction with VAST technology for increased cone surface area.
Best for
- Car and truck audio systems
- Standard sealed and vented subwoofer enclosures
- Listeners seeking impactful low-frequency output
Key points
- 12" woofer with Kevlar fiber–reinforced paper cone
- 250 Watts RMS power handling (specifies continuous power handling)
- 4‑Ohm single voice coil (SVC)
- VAST technology increases effective cone surface area by up to 25%
- Includes soft-touch ABS trim ring to accommodate a grille insert
- Klippel Verified measurements and CEA-2031 compliance
Fit and use
This 12" subwoofer is designed for use in typical car and truck sealed or vented enclosures. Match amplifier power and impedance to the subwoofer's 250W RMS rating and 4‑ohm single-voice-coil specification. The included soft-touch ABS trim ring allows a grille insert to be fitted if desired.
What to know
Power handling is given as RMS (continuous) rather than peak. The subwoofer's Klippel verification and CEA-2031 reference indicate standardized measurement methods. VAST increases effective cone area to improve output without enlarging the magnet or basket. The product includes a soft-touch ABS trim ring for grille ac…
Highlights
Key features
- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- StampCast basket with integrated spider venting
- Rubberized ABS trim ring with optional grille
- High-temp voice coil with spun-laced Nomex® re-inforcement collar
- Linear spider with embedded 16 AWG tinsel leads
- Extended pole piece and bumped vented backplate
- Custom 10-AWG nickel plated push terminals
- Protective PVC textured magnet cover
- Klippel Verified
- Anodized Aluminum Voice Coil Former
- FlexFit Basket - Subwoofer
More info
Manufacturer details
Rockford Fosgate P1 12” is the first in a family of famous “Punch” subwoofers for cars and trucks. The P1S4-12 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. The P1S4 12 inch car subwoofer also includes:
Additional details
Rockford Fosgate P1 12" 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 in the Punch P1 woofer increases woofer surface cone area by up to 25%. Best in standard sealed and vented enclosures. Includes soft touch ABS trim ring.
Looking for more options? Check out all of our car subwoofers.
Technologies
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
Anodized Aluminum Voice Coil Former
Two things generally happen when voice coils heat-up. They can generate heat close to the melt-down temp of their
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
Stitched Tinsel Leads
Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and
CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
Specs
Specifications
25
| Power Handling (Watts RMS) | 250 Watts RMS 500 Watts Max |
| Subwoofer Type | Standard |
| Magnet Weight (oz) | 45 oz. (1.28 kg.) |
| Voice Coil Type | Single Voice Coil |
| Nominal Impedance | 4-Ohm |
| Qes | 0.56 |
| Fs (Hz) | 25 |
| Le (mH) | 3.01 |
| Voice Coil Diameter | 2.0" (51.6 mm) |
| Size | 12" |
| Speaker Connector | Dual 10 AWG compression |
| Xmax (mm) | 9.0 |
| Sd (cm2) | 548 |
| Re (Ohms) | 3.6 |
| Qms | 3.40 |
| Qts | 0.55 |
| Mounting Depth | 6.0 in. (152.4 mm) |
| SPL (dB @ 2.8v/1m) | 89 |
| Vas (Liters) | 88.3 |
| SPL (dB @ 1w/1m) | 86 |
| Cutout Diameter | 11.22 in. (285 mm) |
| Woofer Displacement | 0.081 cu. ft. (2.3 Liters) |
| Shipping Weight | 11.7 Lbs. (5.3 kg) |
| Sealed Box Volume (Vb) | 1.02 cu. ft. (28.8 Liters) |
| Vented Box Volume (Vb) | 1.79 cu. ft. (50.6 Liters) |
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Installation resources
Wiring diagrams
6
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Box Advisor
Sealed Enclosure
- Recommended volume
- 1.02 cu ft
- Volume range
- 0.7 cu ft to 1.8 cu ft
- Dimensions
- 18 in W x 14 in H x 10 in D
- F3
- 43.7 Hz
- Qtc
- 0.88
- Port / ID
- 52 in
- Subwoofer size
- 54 in
- Impedance
- 1 ohm
- Power handling (RMS)
- 250 W
Vented Enclosure
- Recommended volume
- 1.79 cu ft
- Volume range
- 1.5 cu ft to 2 cu ft
- Dimensions
- 25 in W x 14 in H x 12 in D
- F3
- 33 Hz
- Tuning (Fb)
- 36.3 Hz
- Port / ID
- 54 in
- Subwoofer size
- 54 in
- Impedance
- 1 ohm
- Power handling (RMS)
- 250 W
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
Popular Questions
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