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Rockford Fosgate Power T400X4ad thumbnail image
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5 star
67%
4 star
33%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
4.7
Features
4.7
Design
4.7
Usability
4.7

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Customer Reviews

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SMALL AMP WITH FAN. WORKS GREAT

wow, this is a tiny amp and it pushes 100 RMS per channel at 2 ohms. Rockford also makes a mono amp the same size. Perfect for small trunks. I have both amps, crossover, and a lc8i under where the spare should be. Happy I got it. Sonic Electronix has a great deal.

By 2017 camaro 1ss 1le on April 9, 2020 Checkmark Icon Verified purchase

34 found this helpful


By Anonymous Shopper on September 17, 2023

27 found this helpful


Runs mids and highs like a beast

Nice clean power. My Rockford mids and highs sound phenomenal

By Ron on April 2, 2026 Checkmark Icon Verified purchase
2007 Subaru Outback


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.