Description
8" 4-Ohm DVC Punch P2 Subwoofer 250W RMS, Kevlar Cone, VAST, Dual Spider, Diamond-Cut Cast Aluminium Trim Ring, Extended Pole Piece.
Product Overview
The Rockford Fosgate Punch P2D4-8 is an 8" 4-Ohm Dual Voice Coil (DVC) subwoofer rated at 250W RMS the 4-Ohm variant of the Punch P2 8" platform. Identical construction to the P2D2-8 with the sole difference being 4-Ohm voice coil impedance per coil, providing wiring options of 2-Ohm (parallel), 8-Ohm (series), or 4-Ohm per coil for bi-amplification broader amplifier compatibility than the 2-Ohm DVC variant. Optimised for sealed and vented enclosures. Sold as an individual unit.
All confirmed Punch P2 construction applies: Kevlar fibre-reinforced paper cone, VAST surround (up to 25% increased cone area), high-temperature voice coil with spun-laced Nomex® reinforcement collar, dual linear spider with embedded 16 AWG tinsel leads, extended pole piece with bumped vented backplate, StampCast basket with integrated spider venting, 10-AWG nickel-plated push terminals, diamond-cut cast aluminium trim ring with grille insert provision, and protective PVC textured magnet cover.
Key Specifications
- Subwoofer size: 8 inch
- Voice coil configuration: Dual Voice Coil (DVC)
- Impedance: 4-Ohm per coil (2-Ohm parallel / 8-Ohm series / 4-Ohm biamp)
- Power handling (RMS): 250W (confirmed)
- Peak power: Not specified — confirm with Rockford Fosgate
- Surround technique: VAST (up to 25% increased cone area)
- Sensitivity: Not specified — confirm with Rockford Fosgate
- Frequency response: Not specified — confirm with Rockford Fosgate
- Xmax: Not specified — confirm with Rockford Fosgate
- Voice coil: High-temp, Nomex® reinforcement collar
- Cone: Kevlar fibre-reinforced paper
- Spider: Dual linear with embedded 16 AWG tinsel leads
- Basket: StampCast with integrated spider venting
- Pole piece: Extended
- Backplate: Bumped and vented
- Input terminals: 10-AWG nickel-plated push terminals
- Trim ring: Diamond-cut cast aluminium (grille insert compatible)
- Magnet cover: Protective PVC textured
- Enclosure compatibility: Sealed and vented ✓
- Mounting depth: Not specified — confirm with Rockford Fosgate
- Cutout diameter: Not specified — confirm with Rockford Fosgate
- Sold as: Individual unit
- Weight: Not specified — confirm with Rockford Fosgate
- Warranty: Not specified — confirm with Rockford Fosgate
Features & Benefits
-
4-Ohm DVC — Three Wiring Configurations:
-
2-Ohm (parallel): Most common configuration — compatible with most 2-Ohm-rated mono amplifiers
-
8-Ohm (series): Suits amplifiers with minimum impedance requirements above 4-Ohm
-
4-Ohm per coil (biamp): Each coil to a separate amplifier channel
-
250W RMS — Confirmed 250W RMS in a compact 8" format.
-
Diamond-Cut Cast Aluminium Trim Ring — Die-cast aluminium with a precision diamond-cut machined finish — a premium visual and structural step above rubberized ABS trim rings.
-
Dual Linear Spider — Two spiders for improved compliance linearity and cone control at high excursion levels.
-
Kevlar Fibre-Reinforced Paper Cone — Kevlar reinforcement for improved stiffness and breakup resistance with paper's natural damping.
-
VAST — Up to 25% increased effective cone area at the same basket diameter.
-
Nomex® Voice Coil Reinforcement Collar — Thermal and mechanical reinforcement at the highest-stress junction of the moving assembly.
-
Extended Pole Piece and Bumped Vented Backplate — Extended pole for increased Xmax; vented backplate eliminates air spring compression.
-
10-AWG Nickel-Plated Push Terminals — Heavier gauge connection for 250W operation.
-
StampCast Basket with Integrated Spider Venting — Motor cooling during sustained use.
Technical Specs
| Specification |
Detail |
| Brand |
Rockford Fosgate |
| Part Number |
P2D4-8 |
| Series |
Punch P2 |
| Subwoofer Size |
8 inch |
| Voice Coil |
Dual Voice Coil (DVC) |
| Impedance per Coil |
4-Ohm ✓ |
| Wiring Options |
2-Ohm (parallel) / 8-Ohm (series) / 4-Ohm biamp ✓ |
| Power Handling (RMS) |
250W ✓ |
| Peak Power |
Not specified |
| Surround Technique |
VAST (up to 25% increased cone area) ✓ |
| Sensitivity |
Not specified |
| Frequency Response |
Not specified |
| Xmax |
Not specified |
| Voice Coil |
High-Temp, Nomex® Collar ✓ |
| Cone |
Kevlar Fibre-Reinforced Paper ✓ |
| Spider |
Dual Linear, Embedded 16 AWG Tinsel Leads ✓ |
| Basket |
StampCast with Integrated Spider Venting |
| Pole Piece |
Extended ✓ |
| Backplate |
Bumped and Vented ✓ |
| Input Terminals |
10-AWG Nickel-Plated Push Terminals ✓ |
| Trim Ring |
Diamond-Cut Cast Aluminium (Grille Compatible) ✓ |
| Magnet Cover |
Protective PVC Textured ✓ |
| Enclosure Type |
Sealed and Vented ✓ |
| Mounting Depth |
Not specified |
| Cutout Diameter |
Not specified |
| Sold As |
Individual Unit |
| Weight |
Not specified |
| Warranty |
Not specified — confirm with Rockford Fosgate |
Compatible With / Goes Well With
Suitable enclosure types:
- Sealed — tight, accurate bass
- Vented — higher efficiency at tuning frequency
Wiring:
- 2-Ohm → parallel (most common)
- 8-Ohm → series
- 4-Ohm per coil → biamp
Pairs well with:
- Rockford Fosgate T1000-1BDCP or T1500-1BDCP mono amplifiers at 2-Ohm or 4-Ohm
Frequently Asked Questions
What is the difference between the P2D4-8 and P2D2-8?
Both are identical 8" Punch P2 subwoofers with the same 250W RMS rating and construction. The difference is voice coil impedance: P2D4-8 is 4-Ohm per coil (2-Ohm parallel / 8-Ohm series), while the P2D2-8 is 2-Ohm per coil (1-Ohm parallel / 4-Ohm series). The 4-Ohm DVC's 2-Ohm parallel configuration is more universally compatible with mono amplifiers than the 2-Ohm DVC's 1-Ohm parallel option.
What amplifier power is appropriate?
250W RMS at the selected wiring impedance. Confirm the amplifier's RMS output at 2-Ohm (parallel) or 4-Ohm before purchasing.
What enclosure volume is recommended?
Not confirmed in the supplier data. Pull the official Rockford Fosgate P2D4-8 datasheet for sealed and vented recommendations.
Is a grille available?
The diamond-cut cast aluminium trim ring accommodates an optional grille insert. Confirm the compatible grille SKU with Rockford Fosgate.
Why does the P2 use a dual spider?
Two spiders provide greater mechanical damping and more linear suspension compliance across the full excursion range of the voice coil — reducing distortion and improving cone control at high output levels compared to a single spider design.
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