SKU: 44019925413

Fusion MS-AM504 4 Channel Marine Amplifier 500W

Sale price$147.15 Regular price$163.50
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

Fusion MS-AM504 4 Channel Marine Amplifier 500WAmplifier Class: Class AB Frequency Response: 5Hz 38kHz + 3dB Peak Power: 500 Watts Rated Power (4 Ohms): 65 Watts RMS x 4 @ 14. 4V 4 1% THD Rated Power (2 Ohms): 100 Watts RMS x 4 @ 14. 4V 2 1% THD Rated Power (4 Ohms Bridged): 200 Watts RMS x 2 @ 14. 4V 4 Bridged 1% THD Value packed and purpose built for quality audio amplification on the water. The FUSION AM Series marine amplifiers are purpose built for the marine environment. Boasting some of the

  • Amplifier Class: Class-AB
  • Frequency Response: 5Hz - 38kHz +/- 3dB
  • Peak Power: 500 Watts
  • Rated Power (4 Ohms): 65 Watts RMS x 4 @ 14.4V - 4Ω 1% THD
  • Rated Power (2 Ohms): 100 Watts RMS x 4 @ 14.4V - 2Ω 1% THD
  • Rated Power (4 Ohms Bridged): 200 Watts RMS x 2 @ 14.4V - 4Ω Bridged 1% THD

Value-packed and purpose-built for quality audio amplification on the water.

The FUSION AM Series marine amplifiers are purpose-built for the marine environment. Boasting some of the most impressive environmental protection available they deliver performance on the water like never before.

With 4 channels and a 500 Watt peak power output the MS-AM504 will power either a pair of Fusion speakers plus a 10 subwoofer or up to four pairs of speakers (with 2 speakers in parallel each channel at 2 Ohms) to spread the sound around the vessel.

Incorporating heat-tempered and conformal coated PCBs for maximum product life and gold-plated connectors for improved signal flow the MS-AM504 reproduces clean and powerful audio with enough power to rock the boat.

Features:

  • 500W peak power output to power up to eight speakers
  • Class-AB amplifier- power efficient with less cross-over distortion
  • Conformal coated PCBs- water resistant protection from salt air and moisture
  • FUTRANZ heat sink technology- transfers heat more efficiently and provides more thermal stability with maximum component reliability
  • F.R.A.T (Fusion Regulated Amplifier Technology)- provides enormous power output at low voltage.
  • F.I.S.T (Fusion Intercooled Semi-Conductor Technology)- clamps down internal power switching to rapidly remove heat from all associated semi-conductors
  • 1 year limited Consumer Warranty

The Fusion AM Series marine amplifiers are the perfect complement to any Fusion marine stereo system.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 44019925413

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4.0 ★★★★★
Based on 11 reviews
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Baker-s
West Palm Beach, US
★★★★★ 3
I wanted a blue ball
It's great. It just wasn't blue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
J
Verified Purchase
Jr
Los Angeles, US
★★★★★ 5
its a great ball
works well
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Reviewed in the United States on July 8, 2025
M
Verified Purchase
monsieurcritique
West Palm Beach, US
★★★★★ 5
Good product. My dog is very entertained and stimulated by playing with it.
Color: Green, Size: Small (2.0 in, Pack of 2)
I'M AMENDING THIS REVIEW AND ADJUSTING THE RATING UPWARD! Though it took my dog a little while to adjust to how differently this ball behaves, HE LOVES IT NOW. I wish I could give you a sense of how enjoyable and comically entertaining it is to play with him using it. ORIG. REVIEW: Bought this for a little 8 lb. aggressive chewer who loves to play fetch. I initially bought the 2" Chuckit! Ultra ball previously. It is the most amazingly durable product I've found for this pup. Very firm, but not hard on his teeth. He's very quick and agile, so I thought he would like the eye-mouth coordination challenge of a ball that changes direction suddenly. I guess my only disappointment with the product is that the ball is hollow instead of having a solid core like the Ultra ball, so he doesn't enjoy chomping down on it the same way. The erratic bounce feature is entertaining, but the pup is a little skittish, so he was intimidated at first. He's warmed up to it, but not with the same enthusiasm as the Ultra ball. Having said all this, I don't fault the product for the rating I gave it. It is a quality-made product that performs as advertised. I just didn't anticipate that my dog would be less enthusiastic than I thought.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2016
M
Verified Purchase
Me
Louisville, US
★★★★★ 5
Awesome
Color: Green, Size: Large (3.0 in, Pack of 1)
Love all the chuckit balls and products and so does my dog. Very durable
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Reviewed in the United States on March 2, 2026
J
Verified Purchase
Johnathan Robinson
Omaha, US
★★★★★ 5
Highly entertained golden retriever!
Color: Green, Size: Large (3.0 in, Pack of 1), Color: Green, Size: Large (3.0 in, Pack of 1)
My golden retriever spends hours chasing this ball. Its erratic bounce pattern keeps him engaged and guessing where to chase the ball. It is durable and stands up to chewing well.
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Reviewed in the United States on January 24, 2026

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