


HXM800.4D - HXM Series 4-Channel 800W Full Range Class D Amplifier
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
HXM800.4D - HXM Series 4-Channel 800W Full Range Class D AmplifierHXM800. 4D HXM Series 4 Channel Full Range Class D Amplifier Introducing the MOTORSPORT Series Amplifiers from Diamond Audio designed to deliver exceptional sound quality while enduring the toughest outdoor elements. Engineered with superior full range Class D Digital Technology, these amplifiers generate impressive RMS power within a compact footprint. Perfect for boats, UTVs, motorcycles, or any mobile audio application, MOTORSPORT amplifiers bring
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4.7 ★★★★★
Based on 492 reviews
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Product Reviews
★★★★★ 5
They match the OEM ones!
They are just as good as the OEM caps and fit perfectly. I found if you put a small piece of rubber with adhesive on 3 of the tabs they hold better. I did it on all of them including the oem.
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Reviewed in the United States on December 25, 2023
★★★★★ 5
Great value!
Actually fits the hub better than the OEM cap.
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Reviewed in the United States on September 2, 2024
★★★★★ 5
Good buy and good replacement for stock
I can’t keep these on my UTV, so it’s good to find a reasonably priced alternative.
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Reviewed in the United States on August 17, 2024
★★★★★ 5
Definitely keeps your hands warm !!
Color: Black
These fit nicely on a H.D. Road King. If you bike has heated grips you can drive in 30 deg F weather with only a thin pair of leather gloves.
Update: They kept our hands toasty with the heaters on Level 2 and just wearing a thin pair of leather gloves (for grip) while riding in temps down in the low 30's, high 20's. I would definitely recommend these... the photo in the ad is pretty indicative of how they fit on handlebars. They're really designed for ATV's that have no turn signal lamps on the handlebars. Without modification, they do cover the handlebar mounted turn signals on a Sportster, but not on a Roadking. The draw string that seals the mittens around the handlebar could have a more positive grip to stay closed... we wound up double tying it around bar and that works great. The thing we like most aside from how warm they are (the lining feels great)... is that the cuffs are fairly rigid and don't collapse when you take you hands out (like the photo) which makes it super easy to pull you hands out and put 'em back in again. That's really important at a stop light, but even more important when flying down the road at highway speeds... you just can't afford to be fooling around trying to thread your hands and a coat sleeve back into mittens that are limp and flop down closed when you take you hands out...
I hope this help... be safe !!
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Reviewed in the United States on January 4, 2020
★★★★★ 5
Great
Color: Black
Great choice for outdoor activities.. warm.. fits well.. love the look and design… waterproof
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Reviewed in the United States on December 27, 2025