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Variants
Delivers deep, hard‑hitting low end and high SPL when paired with a capable amp and enclosure. Generally praised for durability and fit as a 15" replacement, though one user reported a post‑warranty failure.
Buyer confidence
85%Highlights
- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- Diamond cut cast aluminum trim ring with optional grille
- StampCast basket with integrated spider venting
Key specs
Full specs- Power Handling (Watts RMS)
- 400 Watts RMS 800 Watts Max
- Mounting Depth
- 7.34 in. (186.5 mm)
- Size
- 15"
- Voice Coil Diameter
- 2.25" (57.15 mm)
- Magnet Weight (oz)
- 81 oz. (2.30 kg.)
- Nominal Impedance
- Dual 4-Ohm
- Speaker Connector
- Dual 10 AWG compression
- Shipping Weight
- 17.9 Lbs. (8.11 kg)
Key specs
Full specs- Power Handling (Watts RMS)
- 400 Watts RMS 800 Watts Max
- Mounting Depth
- 7.34 in. (186.5 mm)
- Size
- 15"
- Voice Coil Diameter
- 2.25" (57.15 mm)
Highlights
Overview- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- Diamond cut cast aluminum trim ring with optional grille
Review highlights
Based on customer reviewsRockford Fosgate Punch 15" P2 DVC — Big, dependable bass
Delivers deep, hard‑hitting low end and high SPL when paired with a capable amp and enclosure. Generally praised for durability and fit as a 15" replacement, though one user reported a post‑warranty failure.
What buyers praise
- Very strong, punchy low‑end and high SPL
- Performs well with substantial power — responds to 400W+ setups
What to watch for
- Needs a capable amplifier and proper box — can overpower stock systems
Overview
The Rockford Fosgate P2D4-15 is a 15" Punch-series subwoofer designed for impactful car audio bass. It pairs a Kevlar-reinforced paper cone with VAST surround technology and a Dual 4‑Ohm voice coil for flexible system integration.
Best for
- Drivers who want deep, punchy low-frequency output in a car audio system
- Custom installs using sealed or vented enclosures
- Systems that require wiring flexibility to match amplifier impedance
Key points
- Size: 15-inch subwoofer
- Voice coil: Dual 4‑Ohm (DVC) for flexible wiring and impedance options
- Power handling: 400 Watts RMS
- Cone: Kevlar fiber reinforced paper for controlled bass impact
- Surround: VAST technology increases effective cone area up to 25%
- Hardware: Diamond-cut cast aluminum trim ring accommodates a grille insert
Fit and use
Performs best in standard sealed or vented enclosures; choose enclosure type based on desired output and space available. Match amplifier power to the 400W RMS rating for consistent performance; Dual 4‑Ohm coils provide wiring options to achieve compatible system impedance. Allows a grille insert to be used with the included cast aluminum trim ring for a finished look in installations that require protection.
What to know
Dual 4‑Ohm voice coils offer flexibility when wiring to amplifiers, but confirm final impedance and power handling with your amplifier and installer. CEA-2031 and Klippel verification indicate the subwoofer's performance was measured to recognized standards. Specific enclosure volume, tuning, and vehicle fitment are n…
Highlights
Key features
- 1 Year Warranty
- Kevlar fiber reinforced paper cone
- Diamond cut cast aluminum trim ring with optional grille
- StampCast basket with integrated spider venting
- Custom 10-AWG nickel plated push terminals
- Protective PVC textured magnet cover
- Extended pole piece and bumped vented backplate
- Dual linear spider with embedded 16 AWG tinsel leads
- High-temp voice coil with spun-laced Nomex® re-inforcement collar
- Stitched Tinsel Leads
- CEA-2031
- VAST Surround - Subs
More info
Manufacturer details
The Rockford Fosgate P2 15” subwoofer continues “The PUNCH” tradition. The P2D4-15 features a Dual 4-Ohm voice coil, 400 Watts RMS power handling, and can accommodate a grille insert using the included cast aluminum trim ring.
Additional details
Rockford Fosgate has always been known as "The PUNCH" and the P2 15" subwoofer certainly continues with the tradition. Kevlar fiber reinforced paper cones deliver bass impact you can feel along with VAST technology to increase surface cone area up to 25%. The P2 subwoofers perform best in standard sealed and vented enclosures. Includes diamond cut cast aluminum trim ring. Optional grille insert available.
Technologies
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
Patent: Patent Pending
VAST Surround - Subs
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
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
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
Specs
Specifications
24
| Power Handling (Watts RMS) | 400 Watts RMS 800 Watts Max |
| Mounting Depth | 7.34 in. (186.5 mm) |
| Size | 15" |
| Voice Coil Diameter | 2.25" (57.15 mm) |
| Magnet Weight (oz) | 81 oz. (2.30 kg.) |
| Nominal Impedance | Dual 4-Ohm |
| Speaker Connector | Dual 10 AWG compression |
| Shipping Weight | 17.9 Lbs. (8.11 kg) |
| SPL (dB @ 1w/1m) | 86 |
| Cutout Diameter | 13.9 in. (353 mm) |
| Re (Ohms) | 6.40 |
| Le (mH) | 5.4 |
| Fs (Hz) | 20.9 |
| Qts | 0.66 |
| Qes | 0.74 |
| Qms | 5.70 |
| Vas (Liters) | 219.6 |
| Woofer Displacement | 0.134 cu. ft. (3.8 Liters) |
| Xmax (mm) | 12.2 |
| Sd (cm2) | 894 |
| Subwoofer Type | Standard |
| Voice Coil Type | Dual Voice Coil |
| Sealed Box Volume (Vb) | 1.58 cu. ft. (44.7 Liters) |
| Vented Box Volume (Vb) | 2.66 cu. ft. (75.3 Liters) |
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Installation resources
Wiring diagrams
9
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
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Box Advisor
Sealed Enclosure
- Recommended volume
- 1.58 cu ft
- Volume range
- 1.3 cu ft to 3.5 cu ft
- Dimensions
- 21 in W x 18 in H x 10 in D
- F3
- 38.2 Hz
- Qtc
- 1.36
- Port / ID
- 62 in
- Subwoofer size
- 64 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 400 W
Vented Enclosure
- Recommended volume
- 2.66 cu ft
- Volume range
- 2.4 cu ft to 3 cu ft
- Dimensions
- 28 in W x 18 in H x 12 in D
- F3
- 33 Hz
- Tuning (Fb)
- 32 Hz
- Port / ID
- 64 in
- Subwoofer size
- 64 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 400 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.
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