









Rockford Fosgate Power T1D412
Power Series 12" Component Subwoofer with Selectable 2- or 8-ohm Impedance
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Rockford Fosgate Power T1D412: High-Powered 12" Dual 4-Ohm Subwoofer
The Rockford Fosgate Power T1D412 is a top-tier 12" dual 4-ohm subwoofer designed to deliver deep, accurate, and thunderous bass in your car audio system. As part of Rockford Fosgate's elite Power series, this subwoofer is engineered for audiophiles and bass enthusiasts who demand exceptional sound quality and performance. Whether you’re upgrading your current setup or building a new system, the T1D412 offers the perfect combination of power, durability, and precision, making it a must-have for any high-performance audio system.
Key Features
- Powerful Bass Output: Delivers up to 800 watts RMS and 1600 watts peak power for deep, impactful bass.
- Dual 4-Ohm Voice Coils: Provides flexible wiring options for optimal system configuration and performance.
- Kefflar-Reinforced Paper Cone: Offers a perfect balance of strength, durability, and responsiveness for accurate bass reproduction.
- Anodized Aluminum Voice Coil Former: Ensures superior heat dissipation, preventing thermal overload during high-power operation.
- VAST Surround Technology: Increases cone area by up to 25%, delivering more bass without taking up additional space.
- Versatile Installation: Designed for use in both sealed and ported enclosures, offering flexibility in sound tuning.
Specifications
| Specification | Details |
|---|---|
| Size | 12" |
| Impedance | Dual 4-Ohm |
| Power Handling | 800 Watts RMS / 1600 Watts Max |
| Voice Coil Diameter | 3" (76.2 mm) |
| Magnet Weight | 164 oz (4.65 kg) |
| Mounting Depth | 7.10" (180.3 mm) |
| Cutout Diameter | 11.25" (285.75 mm) |
| Sensitivity | 85 dB @ 1W/1M |
| Recommended Enclosure | Sealed or Ported |
| VAST Surround | Increases cone area by up to 25% |
Frequently Asked Questions
Q: What is the Rockford Fosgate Power T1D412?
A: The T1D412 is a high-performance 12" dual 4-ohm subwoofer designed to deliver deep, powerful, and accurate bass, ideal for car audio systems that demand high-quality sound and extreme power handling.
Q: Can the T1D412 handle high power levels?
A: Yes, the T1D412 is designed to handle up to 800 watts RMS and 1600 watts peak power, making it capable of producing earth-shaking bass that you can feel.
Q: Is the T1D412 subwoofer durable?
A: Absolutely! The T1D412 features a Kevlar-reinforced paper cone, an anodized aluminum voice coil former, and a rugged cast aluminum frame, ensuring durability and long-lasting performance even under demanding conditions.
Q: Can I install the T1D412 in different types of enclosures?
A: Yes, the T1D412 is designed for use in both sealed and ported enclosures, giving you the flexibility to tune the sound to your personal preferences and vehicle acoustics.
Q: Why should I choose the Rockford Fosgate Power T1D412 for my car audio system?
A: The T1D412 offers powerful bass output, advanced construction, and versatile installation options, making it an excellent choice for anyone looking to upgrade their car audio system with a high-performance subwoofer.
Experience Deep, Powerful Bass with the Rockford Fosgate Power T1D412!
Don’t miss out on the opportunity to enhance your car audio with a high-powered subwoofer. Order the Rockford Fosgate Power T1D412 now and enjoy superior bass performance on every drive.

What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.
