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PX 400W 4 Channel Class D Full-Range Amplifier

Marsoni M251S
Sale price$209.97
Pay 4 payments of $52.49 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
PX 400W 4 Channel Class D Full-Range AmplifierCompletely re engineered, the PXA400. 4 supplies big power to your speakers, in a compact, waterproof design for the trickiest installs. Waterproof amplifier design with IP66 and IP67 certifications Ideal for UTVs, off road vehicles, hot rods or space challenged vehicles High efficiency Class D technology Huge power from a small footprint rated at 800 watts Dynamic Power!** One Ohm stable Dual turn on modes (choice of DC offset or 12v trigger)
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1309 reviews
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Brakes
Fort Morgan, US
★★★★★ 5
2022 Outback 2.5
Size: size for ASCENT/CROSSTREK/IMPREZA/LEGACY/OUTBACK
Fits with no issues
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
M
Verified Purchase
Mgnwlf
Pawtucket, US
★★★★★ 5
Perfect fit for 2018 grand touring
Size: size for 6 Turbo/CX5 Turbo
It fit perfectly in my 2018 Mazda 6 Grand Touring. I replaced both filters & had no issues installing them. They feel really well made. I could notice a difference in smell right away. It wasn’t bad, I just knew I had replaced them LOL. The value is great for what you get.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
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Verified Purchase
Ronald Lawrence
Draper, US
★★★★★ 5
Good quality
Size: size for MDX/PASSPORT/PILOT/RIDGELINE
Great buy . Easy to change out and saved $60.00 by not having the dealership do it.
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Reviewed in the United States on March 10, 2026
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Verified Purchase
Xxx
Birmingham, US
★★★★★ 5
Bang for your buck
Size: size for ASCENT/CROSSTREK/IMPREZA/LEGACY/OUTBACK
Works like OEM
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
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Verified Purchase
Nadia
Massapequa, US
★★★★★ 5
Happy
Size: size for 3/6/CX5 Non-Turbo
They fit my car. So im happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026

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