Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer vs Alpine R2-W12D4
Buy the Rockford Fosgate P3D4-12 if you want the most bass per dollar: it handles 600W RMS, costs $259.99 at Crutchfield as of November 3, 2026, and five stores stock it. Buy the Alpine R2-W12D4 if you have a strong amp and want tighter, deeper bass: it handles 750W RMS, has 20mm of Xmax, and costs $449.95 at Amazon as of November 3, 2026. The Alpine costs about $190 more and only one store prices it new.
Today the Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer costs $189.96 less at its best price.
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Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer
4.1Choose the Rockford Fosgate P3D4-12 if you want 600W RMS handling at about $260 and a sub that fits a 6.66-inch-deep mounting hole.
- 600W RMS for about $260 is strong value.
- Five stores price it new, so comparison shopping is easy.
- Anodized aluminum cone and dustcap resist flex at high output.
- FlexFit basket and cast trim ring simplify custom installs.
What separates them
| Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer | Alpine R2-W12D4 | |
|---|---|---|
| RMS power handling | 600W RMS, 1200W peak | 750W RMS, 2250W peak |
| Mounting depth | 6.66 in. | 4.63 in. |
| Linear excursion (Xmax) | 15.9 mm | 20 mm |
| Sensitivity | 85 dB | 84.6 dB |
| Cone material | Anodized aluminum cone and dustcap | Kevlar-reinforced pulp cone with HAMR surround |
| Magnet weight | 96 oz | 144 oz |
| Price, November 3, 2026 | $259.99 at Crutchfield | $449.95 at Amazon |
| Stores pricing it new |
Price history
- Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer: lowest $258.00 on Oct 29 at eBay; $259.99 on Nov 3.
- Alpine R2-W12D4: lowest $449.95 on Nov 2 at Amazon; $449.95 on Nov 3.
Prices at every store
Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer
- CrutchfieldNew
In stock
$259.99Free shippingObserved at 8:03 AM - WalmartNew
In stockSold by Custom Sounds & Tint
$259.99Free shippingObserved at 8:03 AM - eBayNew
In stockSold by crutchfield_electronics
$259.99Free shippingObserved at 8:03 AM - ABC WarehouseNew
In stock
$259.99+ $40.92 shippingObserved at 8:03 AM
Also available at
- WalmartCheck price at Walmart
Alpine R2-W12D4
- AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$449.95Free shippingObserved at 8:03 AM
Also available at
- WalmartCheck price at Walmart
Specs compared
| Spec | Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer | Alpine R2-W12D4 |
|---|---|---|
| Waterproof | No | No |
| RMS Output | 600 Watts RMS | 350 watts |
| Maximum Output | 1200 Watts Max | 1000 watts |
| Channels | 1-Way | 5.1 or 7.1 (surround-sound channel configuratio… |
| Connectivity Type | Wired | Wired |
| Ports &Amp; Interfaces | Custom 10-AWG nickel plated push terminals | Banana connector |
| Dual Voice Coil | Yes | Yes |
| Speaker Type | Subwoofer | Subwoofer |
| Impedance | Dual 4-Ohm | 2-ohm |
| Sensitivity | 85 dB @ 1w/1m |
What reviewers say
Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer
Owner feedback on the P3 series is generally positive, with buyers praising output for the money and build quality. The 4.1-out-of-5 average from 10 ratings suggests most are satisfied but not unanimous.
- Loud, clean output for the price
- Solid build, including the cast basket and terminals
- Handles rated power without obvious stress
- Needs a large, well-built box to sound its best
- Demands a strong amplifier
- A few report failures or short life under heavy use
Alpine R2-W12D4
Only two ratings are on record, both 5 out of 5, so owner feedback is thin. Published reviews of the R-Series line credit the larger motor for tighter, deeper bass than the previous generation.
Questions and answers
- Which hits harder, the P3D4-12 or the R2-W12D4?
- The Alpine R2-W12D4 has more headroom: 750W RMS, 2250W peak and 20 mm Xmax versus 600W RMS, 1200W peak and 15.9 mm. With a matching amp it plays louder and deeper. The Rockford is close at moderate power.
- Is the Alpine worth about $190 more?
- Only if your amp can deliver near 750W RMS and your box fits a 4.63-inch depth. At $259.99 the Rockford covers most daily-listening setups for less.
- Which fits a shallow enclosure?
- The Alpine, at 4.63 inches of mounting depth versus 6.66 inches for the Rockford. Check your box before buying either.
- Do both work in sealed and ported boxes?
- Alpine lists sealed boxes from 0.55 to 1.0 cu ft and ported options. Rockford publishes its own box specs for the P3D4-12; follow those for either sub.
- Which is easier to find in stock?
- The Rockford, with five stores pricing it new as of November 3, 2026. The Alpine shows one store, Amazon, at $449.95.
- What amp power do I need for each?
- Plan for about 600W RMS at 2 ohms for the Rockford and 750W RMS at 2 ohms for the Alpine, since both use dual 4-ohm coils.
More comparisons
- Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer vs Kicker CompR 12" Dual 4-Ohm Subwoofer
- Alpine R2-W12D4 vs Kicker CompR 12" Dual 4-Ohm Subwoofer
- Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer vs Klipsch SPL-120
- Rockford Fosgate P3D4-12 Punch P3 12-inch Subwoofer vs Sundown Audio SA-12 v.3 D4 12"
- Alpine R2-W12D4 vs Sundown Audio SA-12 v.3 D4 12"