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500W Rockford Fosgate R2D4-12 + Enclosure Bass Package

12" Rockford Fosgate R2D4-12 Prime Stage 2 Series Sub + 12SSPF 12" Sealed Sub Enclosure w/Poly-Fil

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Sonic Electronix Exclusive Bass Package

This combo package includes one Rockford Fosgate 12" Prime Stage 2 Series Subwoofer and a single 12" Sealed Subwoofer Enclosure. This sub enclosure is a perfect match for the 12" subwoofer. The Rockford Fosgate subwoofer features a mica injected polypropylene cone and a black raised surround. This woofer is also equipped with spring loaded terminals and a stampcast basket with integrated spider venting. The subwoofer is also CEA-2031 compliant confirming accurate power handling ratings every single time. The subwoofer enclosure is equipped with PolyFil for deeper bass and is constructed from durable 3/4" Medium Density Fiberboard covered in black carpet. Sonic Electronix is the only place you will find this perfectly matched combo.

Rockford Fosgate R2D4-12 Features:
  • 12" Dual 4 ohm Prime Stage 2 Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Impedance: 4 ohm
  • Mica injected polypropylene cone
  • Black raised surround
  • Linear spider with 16 AWG woven tinsel leads
  • StampCast basket with integrated spider venting
  • CEA-2031 Compliant accurate power handling rating
  • Designed for use with sealed and vented enclosures
  • High temperature voice coil
  • Integrated PVC trim ring
  • Anodized aluminum voice coil former
  • Frequency response: 43-250 Hz
  • Sensitivity: 89 dB
  • 1-year SonicElectronix.com warranty
Enclosure Features:
  • Single Sealed 12" Enclosure
  • 3/4" High Quality MDF Material machine-cut to perfection
  • Professionally Sealed, caulked, and carpeted
  • Internal Volume: 1.21 cubic feet
  • Dimensions: 14-1/8"D x 14-1/8"W x 14-1/8"H
  • Durable black carpeting
  • Terminal cup installed with gold posts

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
250 watts
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
500 watts
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Mica Injected Polypropylene (MIPP)
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
89 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
43 - 250 Hz
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
6.5 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Enclosure Specifications

Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Sealed
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
1
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Square/Rectangle
Height
The height of the item, measured from top to bottom, in inches.
14"
Width
The width of the item from left to right (side-to-side) measured in inches.
14"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
14"
Wood Thickness
The thickness of the wood the enclosure is made of, measured in inches.
3/4"
Number of Terminals
The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.
1
Terminal Type
Spring clip terminals work best with bare wire connections with small-gauge speaker wire, or pin-type connectors.

Binding post terminals are a sturdier, more versatile type of speaker terminal. Because binding post terminals are are threaded, you can tighten them down against the wire or connector for a tight, clean connection. The most popular style of binding post terminals is known as a "5-way binding post". This type can accept bare wire, or any of the common speaker wire connectors. Binding posts with the option to be used with banana clips are even more versatile

Spring posts are a hybrid of the two. Instead of using a thread and "screwing" them tight, they use a spring to allow the wire to fit and tighten against the terminal.

Binding posts (banana clip ready)
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Black
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Carpet

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.0
Value
5.0
Features
5.0
Design
4.0
Usability
5.0
Erick

Fort Worth, TX

Overall
Durability
Value
Features
Design
Usability
Excellent

December 30, 2012

Bought this box/sub combo for 2 reasons. First, it was Rockford Fosgate and I know they make quality products. Second, I didn't have a lot of money to spare and for less than $85 I could have a dual 4 ohm voice coil RF 12 with a box to match. I haven't had a custom stereo almost 10 years, but just bought a new car and wanted a system that would rock hard and clean. Its a 2013 Sonata and I wanted to keep the stock look on the dash, so I started with an NVX XPLOC2 line out converter and ran RCA's to my center armrest storage area where I mounted a Cadence CEQ773. From there I ran 3 sets of RCA's to the trunk with an old 4 channel MTX Thunder I had in my last set up putting 55 watts to Infinity Kappa coaxials in the rear doors and Alpine Type S components in the front with Stinger Roadkill applied for sound dampening in the doors and the trunk. For the sub, I went with this RF 12/box combo and powered it with a RF Prime 250 monoblock amp. Took some work getting all my crossover points, gains, and EQ settings tweaked just right and the right place for the sub box placement, but once I did I was impressed. This single 12 hits hard and accurate for price. I listen to a lot of different music, including classic rock, metal and trance. These subs do a great job keeping up. They also go low, which is the only thing I was hesitant about since the specs list it as having a frequency response low of 43hz, but it definitely still picks up the lower notes with ease. Even played the old Techmaster PEB bass cd and this sub only misses the lowest of lows in a couple of songs that most subs would have trouble hitting unless they were pulling at least 500w. This deal is worth every penny if you either don't have more than $100 in the budget for a sub/box combo and probably sounds as good as plenty that would cost you $200 or more.

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R2D4-12 thumbnail
Rockford Fosgate R2D4-12

• Peak Power: 500W
• RMS Power: 250W
• Mica Injected Polypropylene Cone
• StampCast Basket
• Anodized Aluminum Voice Coil Former
• Frequency Response: 43-250 Hz

Your Price $54.99

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Product Summary

Manufacturer

Model Number

R2D4-12_12SSPF

Weight

30.00lbs

Internal SKU

r2d412_12sspf

Internal Product ID

37481

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: 500W Rockford Fosgate R2D4-12 + Enclosure Bass Package