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Rockford Fosgate  R2SD4-12

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

Item #33555

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.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

$179.99

Reg. Price $224.99  Save $45.00
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Rockford Fosgate R2SD4-12 Prime Series 12" 500W Peak Power Handling at 4 Ohms, Dual Voice Coil Shallow 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) shallow-mount 12" Dual 4-ohm voice coil woofer
  • • Trim ring
  • • (8) 1-1/8" Self-tapping screws
  • • 4mm Allen head bit
  • Owner's Manual
Big Bass, Small Space, No Problem

The Rockford Fosgate R2SD4-12 is perfect if you want serious bass but do not have a lot of space to work with. Its shallow mount design keeps the motor compact so you can install it in tight areas without needing a huge box. Even with its slim profile, it still delivers solid, controlled low end that brings your music to life without taking over your entire trunk.

Wiring Freedom for Any Setup

This sub gives you flexibility with dual 4 ohm voice coils that make system matching way easier. You can wire it in parallel for a 2 ohm load if you want more power or in series for an 8 ohm load if your setup calls for it. It is built to work with different amplifier configurations so you can dial in your system exactly how you want it.

Clean, Strong Bass You Can Rely On

Even though it is compact, this sub is tuned to deliver strong low frequency output that stays clean and controlled. You get tight bass that does not fall apart when the volume goes up. Whether you are listening to hip hop, EDM, or rock, it keeps your sound full and balanced without distortion taking over.

Built for Easy Install and Real World Use

The R2SD4-12 uses a reinforced spring post connection system that makes installation simple and secure. It supports up to 12 gauge wire along with pin connectors and banana plugs so you can hook it up the way you prefer. It also works great in both sealed and ported enclosures, giving you the choice between tighter accuracy or louder, more efficient bass depending on your build style.


SPECIFICATIONS


  • Diameter : 12 Inch
  • Sensitivity : 85 dB
  • Impedance : 4 Ohm
  • Frequency Response : 29-250 Hz
  • Peak Power Handling : 500 Watts
  • Top Mount Depth : 3-5/8 Inches
  • Shallow Mount : Yes Inch
  • Suggested Sealed Box Volume : 0.9 Cubic ft.
  • Suggested Ported Box Volume : 1.79 Cubic ft.
  • RMS Power Handling : 250 Watts

FEATURES


Features:

  • Space Saving Shallow Mount Engineering: Designed with a compact motor structure that reduces overall mounting depth, making it ideal for tight installations and vehicles with limited space. It delivers solid bass performance without requiring a large enclosure, giving you more flexibility in your build.
  • Dual 4Ω Voice Coil Wiring Flexibility: Built with dual 4 ohm voice coils that allow multiple wiring configurations depending on your system needs. You can wire it in parallel for a 2 ohm mono load or in series for an 8 ohm mono load, making it easier to match different amplifiers and tuning goals.
  • Strong Low Frequency Output Design: Engineered to deliver clean and controlled bass response even in compact setups. Despite its shallow profile, it maintains strong low frequency performance that enhances overall sound quality across all music genres.
  • Reinforced Spring Post Connection System: Features durable compression style terminals with nickel plated spring posts that support bare wire up to 12 gauge, along with pin connectors and banana plugs. This ensures a secure connection and stable signal transfer for consistent performance.
  • Optimized Sealed and Ported Enclosure Support: Works efficiently in both sealed and vented box designs, giving you flexibility in how you want your bass to sound. A sealed enclosure delivers tighter and more accurate bass, while a ported setup increases output and efficiency for louder performance.
  • Balanced Performance for Everyday Builds: Designed for car audio enthusiasts who want reliable bass in a space friendly format. It combines smart engineering and practical enclosure options to deliver a dependable subwoofer solution for daily listening and custom installs.

 

Specifications:

  • Size: 12 -inch
  • Impedance (Ohms): 2, 8
  • Cone Material: Mica injected Poly
  • Surround Material: Poly-Foam
  • Ideal Sealed Box Volume (cubic feet): 0.9
  • Ideal Ported Box Volume (cubic feet): 1.79
  • Port diameter (inches): 4
  • Port length (inches): 11.8
  • Free-Air: No
  • Dual Voice Coil: Yes
  • Sensitivity: 85 dB at 1 watt
  • Frequency Response: 29 - 250 Hz
  • Max RMS Power Handling: 250
  • Peak Power Handling (Watts): 500
  • Top Mount Depth (inches): 3 5/8
  • Bottom Mount Depth (inches): N/A
  • Cutout Diameter or Length (inches): 11 1/8
  • Vas (liters): 65.4
  • Fs (Hz): 29.7
  • Qts: 0.66
  • Xmax (millimeters): 10
  • UPC: 780687339821
  • 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.

Do you own this product?

Write a review!
  • This subwoofer is so easy to install. It also delivers some great bass and is more than enough from what I have expected from this sub.

    Emmett Young
    4/26/2023

  • Highly recommended for small spaces. Its a 250 Watt sub and I’ve connected on a 500 watt amp so I don’t push the volume too much but the loudness is still there. I just wondered how can a shallow sub like this one can be able to deliver that much volume

    Jory
    3/8/2024

  • Great sub. Less footprint with this shallow sub. But even with how it is, it still sounds pretty great. Great bang for the buck

    Delbert
    4/26/2024
free installation

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