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Rockford Fosgate  R2D4-12

Prime Series R2 12" 500W Peak Power Handling at 4 Ohms, Dual Voice Coil Car Subwoofer

Item #27811

Condition:   Brand New

Product Highlights

  • Prime Series
  • 12" Subwoofer
  • 500W Peak Power
  • 4 Ohms Impedance
  • Dual Voice Coil

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
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$119.99

Reg. Price $154.99  Save $35.00
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Rockford Fosgate R2D4-12 Prime Series R2 12" 500W Peak Power Handling at 4 Ohms, Dual Voice Coil Car Subwoofer


We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • (1) 12" Dual 4-ohm voice coil subwoofer
  • • Trim ring
  • • (8) 1-1/8" Allen head screws
  • • 4mm Allen head bit
  • Owner's Manual
Built for Serious Low-End Punch That Stays Clean

If you’re chasing deep, solid bass that doesn’t fall apart when you crank it, the Rockford Fosgate Prime R2D4-12 12-inch subwoofer is built for exactly that. With CEA-2031 compliant power handling, it’s designed to handle continuous power instead of just short bursts, so you get consistent, controlled bass without distortion or strain. Whether you’re bumping daily or pushing your system harder on the weekends, this sub keeps the low end tight, clean, and reliable.

Dual 4 Ohm Wiring Freedom for Your Setup

One of the biggest advantages here is the dual 4Ω voice coil design, giving you real flexibility when building your system. You can wire it to a 2Ω load for more output or an 8Ω configuration for different amplifier matching needs. That means you’re not locked into a single setup, you can tune your system the way you want it to perform, whether you’re going for efficiency, power, or balance.

Rugged Build That Handles Heat and Heavy Bass

This subwoofer is built like it means it. The StampCast steel frame adds serious rigidity, keeping everything stable even during heavy cone movement. Inside, you’ve got a mica injected polypropylene cone paired with an anodized aluminum voice coil former, plus spider venting to help manage heat during long sessions. Add in the compression terminals for secure wiring, and you’ve got a sub that’s made to take abuse and still perform like it should.


SPECIFICATIONS


  • Diameter : 12 Inch
  • Sensitivity : 85 dB
  • Impedance : 4 Ohm
  • Frequency Response : 43-250 Hz
  • Peak Power Handling : 500 Watts
  • Top Mount Depth : 5-1/8 Inches
  • Shallow Mount : Yes Inch
  • Number of Voice Coils : Dual
  • Suggested Sealed Box Volume : 1.02 Cubic ft.
  • Suggested Ported Box Volume : 1.79 Cubic ft.
  • RMS Power Handling : 250 Watts

FEATURES


Features:

  • Deep Bass Performance with Continuous Power Stability: The Rockford Fosgate Prime R2D4-12 12-inch subwoofer delivers strong, controlled low-frequency output with CEA-2031 compliant power handling, ensuring it can withstand continuous power demand while maintaining clean, distortion-free performance and long-term reliability in demanding car audio applications.
  • Dual 4 Ohm Voice Coil Flexibility for System Matching: Equipped with dual 4Ω voice coils, the R2D4-12 provides versatile wiring options including 2Ω or 8Ω configurations, giving installers greater control to match amplifier requirements and fine-tune overall system output performance.
  • Rigid StampCast Steel Frame for Structural Integrity: The heavy-duty StampCast steel basket enhances rigidity and reduces frame flex during high excursion movement, helping maintain precise cone control and stable bass reproduction even under high output conditions.
  • Durable Cone Construction with Efficient Cooling Design: Featuring a mica injected polypropylene cone, anodized aluminum voice coil former, and integrated spider venting system, the subwoofer is engineered to manage heat efficiently while delivering consistent bass output and long-lasting durability under extended use.

 

Specifications:

  • Size: 12 -inch
  • Impedance (Ohms): 2, 8
  • Cone Material: Mica injected poly
  • Surround Material: Poly-foam
  • Ideal Sealed Box Volume (cubic feet): 1.02
  • Ideal Ported Box Volume (cubic feet): 1.79
  • Port diameter (inches): 4
  • Port length (inches): 9.3
  • Free-Air: No
  • Dual Voice Coil: Yes
  • Sensitivity: 87 dB at 1 watt
  • Frequency Response: 43 - 250 Hz
  • Max RMS Power Handling: 250
  • Peak Power Handling (Watts): 500
  • Top Mount Depth (inches): 5 1/4
  • Bottom Mount Depth (inches): N/A
  • Cutout Diameter or Length (inches): 11 1/16
  • Vas (liters): 68.8
  • Fs (Hz): 35
  • Qts: 0.6
  • Xmax (millimeters): 6
  • Parts Warranty: 1 Year
  • Labor Warranty: 1 Year
  • 12 AWG compression terminals
  • Anodized aluminum voice coil former
  • Integrated PVC trim ring
  • Linear spider with embedded 16 AWG tinsel leads
  • Mica injected polypropylene cone
  • Optimized for both sealed and vented enclosures
  • StampCast basket with integrated spider venting
  • 12" subwoofer with dual 4-ohm voice coils
  • mica-injected polypropylene woofer cone with poly-foam surround
  • stamped solid-steel frame
  • power range: 50-250 watts RMS (500 watts peak power)
  • frequency response: 43-250
  • sensitivity: 89 dB
  • top-mount depth: 5-1/8"
  • sealed box volume: 1.02 cubic feet
  • ported box volume: 1.79 cubic feet
  • grille not included
  • UPC: 780687332563
  • Weight: 11
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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Write a review!
  • I like this sub a lot. It did what I needed it to do! Love it

    Micah Hancock
    10/14/2014
free installation

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