Rockford Fosgate Power T400-4
Power Series 400W 4-Channel Car Amplifier
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Rockford Fosgate Power T400-4: 4-Channel Amplifier for Powerful, Clear Sound
The Rockford Fosgate Power T400-4 is a high-performance 4-channel amplifier delivering 400 watts of powerful, clear sound. Designed for car audio enthusiasts who value precision and quality, this amplifier is part of Rockford Fosgate’s acclaimed Power Series. Whether upgrading a factory setup or building a custom system, the T400-4 provides the power, flexibility, and control needed for a superior listening experience.
Key Features
- Powerful Sound Output: 400 watts RMS delivers clean, dynamic sound for an immersive experience.
- 4-Channel Flexibility: Capable of driving four speakers or two speakers and a subwoofer.
- Class AB Efficiency: Blends high-quality sound with excellent efficiency and reliability.
- Dynamic Thermal Management: Helps regulate internal temperature for consistent, long-term performance.
- Precision Controls: Variable high-pass/low-pass crossovers and Punch EQ for personalized sound tuning.
Specifications
| Specification | Details |
|---|---|
| Power Output | 100W x 4 @ 4Ω, 200W x 2 @ 4Ω Bridged |
| Frequency Response | 20 Hz – 20 kHz |
| Signal-to-Noise Ratio | >105 dB |
| Crossover | Variable HP/LP (50 Hz – 500 Hz @ 12 dB/octave) |
| Punch EQ | +0–18 dB Boost @ 45 Hz |
| Dimensions | 2.4" x 7.8" x 11.0" (6.1 cm x 19.8 cm x 28.0 cm) |
| Input Sensitivity | 150 mV – 4V (High-Level and Low-Level) |
| Class | AB |
What’s In the Box
- Rockford Fosgate Power T400-4 Amplifier
- Mounting Hardware
- User Manual
Frequently Asked Questions
Q: What is the Rockford Fosgate Power T400-4?
A: The T400-4 is a 400-watt, 4-channel amplifier designed to deliver powerful and precise sound, suitable for a wide range of car audio setups.
Q: Can the T400-4 drive multiple speakers?
A: Yes, it can power four speakers or be bridged to run two speakers and a subwoofer for added versatility.
Q: What makes the T400-4 amplifier unique?
A: It features a Class AB design with Dynamic Thermal Management for excellent sound quality, efficiency, and long-term reliability.
Q: Is the T400-4 easy to install?
A: Absolutely. With high-level inputs and a compact chassis, it integrates seamlessly into both factory and aftermarket systems.
Q: Why choose the Rockford Fosgate Power T400-4?
A: The T400-4 combines power, sound clarity, and flexible configuration options, making it an excellent choice for enhancing your car audio experience.
Experience Powerful, Clear Sound with the Rockford Fosgate Power T400-4
Take your in-car audio to the next level with the Rockford Fosgate Power T400-4. Order today to enjoy superior sound performance and customized control every time you 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.