Variants
A powerful 15" sub that delivers punchy, low-frequency output with clean, detailed bass—especially effective in sealed enclosures—when paired with an appropriately sized amplifier.
Buyer confidence
88%Highlights
- 1 Year Warranty
- Anodized aluminum cone and dustcap
- Diamond cut cast aluminum trim ring with optional grille
- StampCast basket with integrated spider venting
Key specs
Full specs- Size
- 15"
- Mounting Depth
- 7.58 in. (192.5 mm)
- Speaker Connector
- Dual 10 AWG compression
- Voice Coil Diameter
- 2.5" (65.5 mm)
- Magnet Weight (oz)
- 96 oz. (2.73 kg.)
- Power Handling (Watts RMS)
- 600 Watts RMS 1200 Watts Max
- Nominal Impedance
- Dual 4-Ohm
- Shipping Weight
- 23.3 Lbs. (10.56 kg)
Key specs
Full specs- Size
- 15"
- Mounting Depth
- 7.58 in. (192.5 mm)
- Speaker Connector
- Dual 10 AWG compression
- Voice Coil Diameter
- 2.5" (65.5 mm)
Highlights
Overview- 1 Year Warranty
- Anodized aluminum cone and dustcap
- Diamond cut cast aluminum trim ring with optional grille
Review highlights
Based on customer reviewsRockford Fosgate Punch 15" P3 4-Ohm DVC Subwoofer — big, punchy, and surprisingly musical
A powerful 15" sub that delivers punchy, low-frequency output with clean, detailed bass—especially effective in sealed enclosures—when paired with an appropriately sized amplifier.
What buyers praise
- Very punchy, high-impact bass and strong pressure output
- Clean, detailed low-end that preserves musical clarity
What to watch for
- Needs a properly sized amplifier and power supply to reach its potential
Overview
High-performance 15" Punch-series subwoofer from Rockford Fosgate with dual 4‑ohm voice coils, 600W RMS power handling, VAST cone area technology, and a FlexFit basket for demanding installations.
Best for
- High-output car audio systems needing deep, controlled bass
- Custom enclosure and compact or challenging installation locations
- Systems where wiring flexibility is desired via dual voice coils
Key points
- 15-inch Punch series subwoofer
- Dual 4‑Ohm voice coils (DVC)
- 600 Watts RMS power handling
- VAST surround technology increases effective cone area up to 25%
- Anodized aluminum cones and dustcaps
- Unique spider venting to help keep the motor cooler
Fit and use
Designed for car audio subwoofer applications where high power handling and durability are required. Dual 4‑ohm voice coils provide wiring flexibility to help match amplifier and system requirements. The FlexFit basket and hybrid construction make it suitable for tight or custom installations. Accommodates a grille insert via the included cast-aluminum trim ring.
What to know
Power handling is rated at 600W RMS—use an amplifier and wiring that match this rating. Optimal performance depends on an appropriately sized and tuned enclosure. Compliance and measured performance are supported by Klippel verification and CEA-2031 listing.
Key features
- 1 Year Warranty
- Anodized aluminum cone and dustcap
- 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
- Klippel Verified
- Stitched Tinsel Leads
- CEA-2031
More info
Manufacturer details
The P3D4-15 is the best performing Rockford Fosgate Punch series subwoofer. The P3 15” features Dual 4-Ohm voice coils, 600 Watts RMS of power handling, and accommodates a grille insert using the included cast aluminum trim ring.
Additional details
The P3D4-15 is Rockford Fosgate's best performing Punch series subwoofer. The P3 subwoofers now feature anodized aluminum cones and dustcaps along with unique spider venting to keep the motor cooler than previous versions. These feature VAST technology to increase surface cone area up to 25% and a FlexFit basket for extreme installations. Best of all, a new hybrid stamp-cast basket offers the best of both worlds by providing super strength while minimizing weight and resonance.
Technologies

Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
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

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
Specs
Specifications
| Size | 15" |
| Mounting Depth | 7.58 in. (192.5 mm) |
| Speaker Connector | Dual 10 AWG compression |
| Voice Coil Diameter | 2.5" (65.5 mm) |
| Magnet Weight (oz) | 96 oz. (2.73 kg.) |
| Power Handling (Watts RMS) | 600 Watts RMS 1200 Watts Max |
| Nominal Impedance | Dual 4-Ohm |
| Shipping Weight | 23.3 Lbs. (10.56 kg) |
| Fs (Hz) | 22.4 |
| Cutout Diameter | 13.94 in. (353 mm) |
| SPL (dB @ 1w/1m) | 86 |
| Qts | 0.57 |
| Qes | 0.64 |
| Qms | 4.90 |
| Vas (Liters) | 155.8 |
| Woofer Displacement | 0.148 cu. ft. (4.2 Liters) |
| Re (Ohms) | 6.40 |
| Le (mH) | 6.45 |
| Xmax (mm) | 15.9 |
| 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
Box Advisor

Sealed Enclosure
- Recommended volume
- 1.58 cu ft
- Volume range
- 1.5 cu ft to 3 cu ft
- Dimensions
- 21 in W x 18 in H x 10 in D
- F3
- 38.3 Hz
- Qtc
- 1.08
- Port / ID
- 68 in
- Subwoofer size
- 70 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 600 W

Vented Enclosure
- Recommended volume
- 2.66 cu ft
- Volume range
- 2.25 cu ft to 3 cu ft
- Dimensions
- 28 in W x 18 in H x 12 in D
- F3
- 31 Hz
- Tuning (Fb)
- 32 Hz
- Port / ID
- 70 in
- Subwoofer size
- 70 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 600 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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