Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Rockford Fosgate HE2 RFP4212
12" Dual 4-ohm Voice Coil Component Subwoofer
Item # 575RFP4212 | MFR # RFP4212
This item is no longer available.
Our take on the Rockford Fosgate HE2 RFP4212 by Crutchfield's Steven Johnson
Let Rockford Fosgate throw a "Punch" and lesser subwoofers will throw in the towel! That's because the redesigned Rockford Fosgate Punch HE2 RFP4212 12" subwoofer produces the kind of bass that's a pure knockout. The thump comes from a cone made from rugged yet responsive polypropylene. The result the kind of bass extension, definition, and power that you expect from Rockford Fosgate.
A large roll treated foam surround guarantees more cone travel for more bass, while a stepped basket makes sure that the cone doesn't "bottom out." Choose the hook-up option that's right for you with dual 2-1/2" 4-ohm voice coils.
Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation.Details:
- polypropylene woofer with large roll treated foam surround
- dual 4-ohm voice coil design
- CONsealer gasket hides mounting screws and stops bass-robbing air leaks
- frequency response 28-200 Hz
- power range 100-400 watts RMS (200 watts per voice coil)
- peak power 800 watts
- sensitivity 86 dB SPL
- top mount depth 6-3/16"
- sealed box volume 0.9-2.79 cubic feet
- ported box volume 1.75-4.0 cubic feet
- Recommended Q-Logic Box Type: 2, 3
- 1-year warranty
What's in the Box:
- One 12" woofer
- "Team RF" sticker
- Installation & Operation manual (English/French/Spanish/German/Italian)
Why Shop With Us?10 Reasons.
Features and Specs
|Impedance||1 ohm or 4 ohms|
|Surround Material||BART Foam|
|Ideal Sealed Box Volume (cubic feet)||1.25|
|Ideal Ported Box Volume (cubic feet)||2|
|Port diameter (inches)||4|
|Port length (inches)||10.75|
|Dual Voice Coil||Yes|
86 dB at 1 watt |
|Frequency Response||28 - 200 Hz|
|RMS Power Range (Watts)||100-400|
|Peak Power Handling (Watts)||800|
|Top Mount Depth (inches)||6 3/16|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||11 1/8|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Dual Voice Coils: For increased system flexibility, the woofer has two 2-1/2 inch 4-ohm voice coils. When the voice coils are wired in parallel, the woofer presents a 2-ohm load. When the voice coils are wired in series, the woofer presents an 8-ohm load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 4-ohm load.
BART Foam Surround: The BART surround has a large roll to assure maximum cone travel. By increasing cone travel, the BART surround allows the woofer to produce more bass.
Aluminum Voice Coil Formers: The voice coil formers are aluminum for highly efficient heat transfer. This allows the use of multiple layers of high temperature copper windings for improved efficiency, and it improves power handling by effectively dissipating heat away from the voice coil windings.
LXcursion Stamped Basket: The Punch woofers use a durable and lightweight stamped cold rolled steel basket. To help prevent the spider from hitting the bottom of the basket ("soft bottoming"), the LXcursion basket features a deep step that moves the physical boundaries of the basket further away from the spider; this allows the cone far greater travel and, therefore more bass, without soft bottoming.
Hyper-Extended Pole Piece: The pole piece is extended in length to lower distortion and provide better low frequency response by operating the voice coil in a linear fashion throughout its travel in the magnetic field.
Vented Bumped Back Plate: The back plate has been bumped to allow the woofer more room for excursion without bottoming out. Additionally, "Aerovent" cooling efficiently and quietly circulates cool air around the voice coil. By keeping the voice coil cooler, power handling is improved.
CONsealer Gasket: A newly designed front gasket conceals mounting screws and provides an airtight seal between the woofer frame and the mounting surface. A better seal increases the amount of bass due to the elimination of air leaks.
Rubber Magnet Boot: A black rubber boot covers the exposed edge of the magnet structure to improve the cosmetics of the woofer and protect the magnet during installation. The rubber boot looks great when the woofer is mounted in an enclosure with a window that allows you to see the back of the woofer.
Binding Posts: The speaker terminals are spring loaded binding posts. The binding posts will accept pin connectors or bare wire up to 10 gauge.
Recommended Sealed Box Volume: The sealed box volume range recommended by Rockford Fosgate is 0.9 cu/ft to 2.79 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 1.25 cu/ft, so this is the enclosure recommended by Crutchfield.
Recommended Ported Box Volume: The ported box volume range recommended by Rockford Fosgate is 1.75 cu/ft to 4.0 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 2.0 cu/ft, so this is the enclosure recommended by Crutchfield. One 4" diameter x 10.75" long port should be used with a 2.0 cu/ft enclosure. This tunes the box to 35 Hz.
Power Handling: The woofer has two 4-ohm voice coils, and each coil can handle up to 200 watts RMS (400 watts peak).
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.