PX 400W 4 Channel Class D Full-Range Amplifier

PX 400W 4 Channel Class D Full-Range Amplifier

Marsoni

M251S

$209.97

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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Pros: Comfortable socks, with wide, not tight band at the ankle. Wish I'd bought them sooner. Con: Amazon description shows a photo of 6 pairs of socks, 2 black, 2 gray, and 2 white. The pack actually comes with 2 black, 1 white, and 3 pairs of gray. Haven't washed them yet. Will see how they stand up.

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Reviewed in the United States on June 14, 2024

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Whiting, US

★★★★★ 5

Not polyester! Thank you UA!

I never realized shopping for cotton socks in 2024 would be so difficult. Luckily I found these, and all the other Under Armour cotton socks and they are the best. I cannot wear polyester, and these only have like 1%. I didn't realize our cotton is being replaced by polyester, and I don't like it. Bath towels don't work anymore either... I need my cotton socks and towels, I love incandescent light bulbs, I'll always have a gas powered mower and leaf blower. Also butterfinger should've never their recipe. Just sayin...

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Reviewed in the United States on May 4, 2024

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Josie Shmidt

Lowell, US

★★★★★ 5

Great quality

Size: Large, Color: True Gray Heather Assorted 2 (6-pairs)

The best socks, cotton quality

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Reviewed in the United States on June 28, 2025

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Mom4two

Phoenix, US

★★★★★ 5

Great sock for everyday

Size: Large, Color: Black/Gray (6 Pairs)

So these are awesome but they are slightly thinner than older versions, shorter too. Just FYI if you a long time UA customer. If you have never had their socks, I love them personally and only like one other brand better. They aren’t overly thick and they allow your feet to breath. I never have sweaty feet in these even in my warm boots. I also like that they don’t cut into my feet or get holes in the toes over long terms. The only reason I’ve thrown these out has been fraying near the ankle or someone (kids) thieving them.

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Reviewed in the United States on December 28, 2019

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Natalie

Waukegan, US

★★★★★ 5

Great socks

Fit Type: Classic Fit, Color: Gray Assorted, Size: Large

These worked perfectly for my son

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Reviewed in the United States on March 1, 2026