null
close
close
click to zoom in
  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Added Value

    Fast & Reliable

  • US & Canada Delivery

FUSION MS-AM504 4-Channel Marine Amplifier - 500W

No reviews yet Write a Review
$225.44
SKU:
010-01500-00
UPC:
753759139254
Condition:
New
Availability:
In Stock
5 customers are viewing this product

FUSION MS-AM504 4-Channel Marine Amplifier - 500W

$225.44

FUSION MS-AM504 4-Channel Marine Amplifier - 500W Product Description

Purpose-built for the marine environment, the AM Series marine amplifiers are designed to enhance your on-water listening experience with quality audio amplification. The Class-AB design provides high power output with reduced distortion to the connected speakers/subwoofers for an enhanced level of audio performance. The AM Series amplifiers feature built-in variable bass boost, a subsonic filter and variable low/high pass crossover filters for enhanced performance and system protection. The AM Series 400-watt 2-channel amplifier can power up to a maximum of two pairs of speakers or one subwoofer. The AM Series 500 Watt 4-channel amplifier can power up to a maximum of four pairs of speakers or two pairs of speakers and one subwoofer.

Fusion Electronics 0100150000 Attributes

  • Class: AB
  • Number Of Channels: 4
  • RMS Power At 4 Ohms: 65 Watt
  • RMS Power At 2 Ohms: 100 Watt
  • Bridged RMS Power: 200 Watt
  • Peak Power Output: 500 Watt
  • High-Pass Crossover Frequency: 40 To 600 Hz
  • Low-Pass Crossover Frequency: 40 To 160 Hz
  • Color: White
  • Length (IN): 14.41 Inch
  • Width (IN): 9.02 Inch
  • Height (IN): 2.09 Inch
  • Logo Design: Fusion Logo
  • With Bass Boost: Yes
  • With Cooling Fan: No
  • Includes Installation Tools: No

Fusion Electronics 0100150000 Features & Benefits

  • Class AB Amplifier Technology Has Good Power Efficiency And Less Cross-Over Distortion
  • Conformal Coated PCBs Are Water Resistant And Protected From Salt Air And Moisture
  • F.R.A.T. Regulated Amplifier Produces Higher Power From A Lower Input
  • F.I.S.T Semi Conductor Technology Removes Heat Efficiently For Low Distortion And Thermal Stability
  • Designed And Engineered For The Marine Environment
  • Class-AB Design Provides High Power Output With Reduced Distortion To The Connected Speakers Or Subwoofers For An Enhanced Level Of Audio Performance
  • Helping To Extend The Life Of Your Amplifiers, The AM Series Amplifiers Are Designed With Conformal Coated PCBs To Provide Extra Protection From The Marine Elements
  • Incorporated Heat Sink Is Designed To Dissipate Heat Efficiently, Providing More Thermal Stability And Enhanced Component Reliability
  • Multiple Configurations To Suit Your Audio Needs
  • Limited 1 Year Warranty

Fusion Electronics 0100150000 Installation Instructions

  • ISPI_FUSION_FCC_SAR_1-year.pdf
  • FM-504_Manual_Edited.pdf

Fusion Electronics 0100150000 Technical Bulletins

  • MS-AM504_line_drawing.pdf
  • ISPI_FUSION_FCC_SAR_1-year.pdf

MS-AM504 4-Channel Marine Amplifier - 500W 

Features:

  • Marine Grade Chassis - Stainless steel end caps and bottom plate provide a stunning finish with added environmental protection.
  • Heat Sink Technology - Heat sink technology transfers heat more efficiently and offers more thermal stability for maximum component reliability.
  • Class-AB Design - The 500 Watt 2-Ohm stable (per channel) design ensures clean and powerful amplification of the input signal,enough to rock the boat.
  • Conformal Coated Circuitry - Provides added protection from salt air and moisture to ensure maximum product life.
  • RCA Line Out - A pass through RCA output enables linking of multiple amplifiers for enhanced system performance.
  • 4 Channels - Capable of powering 4 speakers, a sub and a pair of speakers or 8 speakers in parallel (2 speakers per channel in parellel @ 2 Ohms).


By adding 500 watts of amplification, you can easily extend audio entertainment to new areas of the ship. Power two pairs of speakers, one pair of speakers and one speaker.

FUSION Performance RCA Cable - 2 Channel - 3'
FUSION Performance RCA Cable - 2 Channel - 6'
FUSION Performance RCA Cable - 2 Channel - 12'
FUSION Performance RCA Cable - 2 Channel - 25'
FUSION Performance RCA Cable - 4 Channel - 6'
FUSION Performance RCA Cable - 4 Channel - 12'
FUSION Performance RCA Cable Splitter - 1 Female to 2 Male - .9'
FUSION Performance RCA Cable Splitter - 1 Male to 2 Female - .9'
FUSION Standard RCA Cable - 2 Channel - 3'
FUSION Standard RCA Cable - 2 Channel - 6'


FUSION MS-AM504 4-Channel Marine Amplifier - 500W

FUSION
How to describe FUSION MS-AM504 4-Channel Marine Amplifier - 500W
What is the weight of the product
What's the color of FUSION MS-AM504 4-Channel Marine Amplifier - 500W
What is the waterproof rating of the product
What is the watts of the product
Is this product bridgeable

FUSION

FUSION...True Marine is FUSION's industry-leading marine audio product range. FUSION True Marine products are 100% designed and engineered specifically for the marine environment. FUSION offers an extensive line of Marine Audio products from Stereo Units to Speakers to Marine Packs, Amplifiers, Subwoofers and even Stereo Unit accessories.

How to describe FUSION MS-AM504 4-Channel Marine Amplifier - 500W

By adding 500 watts of amplification, you can easily extend audio entertainment to new areas of the ship. Power two pairs of speakers, one pair of speakers and one speaker.

What is the weight of the product

4.5

What's the color of FUSION MS-AM504 4-Channel Marine Amplifier - 500W

White

What is the waterproof rating of the product

Splashproof

What is the watts of the product

500

Is this product bridgeable

Yes


Save $138 when you buy the FUSION MS-AM504 4-Channel Marine Amplifier - 500W for only $201 from NVN Marine! Same day shipping before 3pm.

FUSION MS-AM504 4-Channel Marine Amplifier - 500W Technical Specifications

Type: 

Entertainment | Amplifiers

Vendor: 

FUSION

Weight: 

8.1 lb

Bridgeable: 

Yes

Channels - Available: 

4

Waterproof Rating: 

Splashproof

Watts: 

500w

Product Manual: 

Download PDF

Product Installation: 

Download PDF

Shipping & Return Policy — EquipTestPro
Last Updated: February 1, 2026
Legal Policies

Shipping & Return Policy

Everything you need to know about orders, cancellations, refunds, and delivery.

🌎
Section 01
Shipping Destinations

EquipTestPro ships to both Canada and the United States. We are pleased to serve customers across North America with reliable, trackable delivery options.

Please Note: Certain products are subject to restrictions and cannot be shipped to all destinations. Product-specific shipping availability is noted on each item's detail page. We do not currently ship to international destinations outside of Canada and the United States.
💲
Section 02
Shipping Rates

When you place an order, a flat-rate shipping charge will be applied at checkout based on your order. The applicable rate will be clearly displayed before you complete your purchase.

Flat-rate shipping is calculated to reflect the cost of reliable, insured delivery. The rate shown at checkout is final — no hidden surcharges will be added after your order is placed.

⚖️
Section 03
Weight-Based Shipping

For certain items, shipping costs are calculated based on the weight of the product. The weight of any weight-based item is listed on its product detail page.

Rounding Policy: To align with the policies of our shipping carriers, all item weights are rounded up to the next full pound when calculating shipping costs.

For example, an item weighing 3.2 lbs will be rated at 4 lbs for shipping calculation purposes. This policy is standard practice across all major carriers we work with.

⚠️
Section 04
Product Restrictions

Some products sold on EquipTestPro are subject to shipping restrictions due to regulatory, carrier, or safety requirements. These include but may not be limited to:

  • Hazardous or regulated materials
  • Oversized or freight-class items
  • Products restricted by provincial or state import regulations
  • Items that cannot be air-shipped due to their composition

Where restrictions apply, this will be clearly noted on the product listing. If you have questions about a specific product's shipping eligibility to your location, please contact us before placing your order.

🕐
Section 05
Order Processing

Orders are processed on business days (Monday through Friday, excluding statutory holidays). Orders placed after business hours or on weekends will begin processing the following business day.

1
Order Confirmed You receive an email confirmation with your order details.
2
Order Processed Your order is verified and prepared for shipment (1–2 business days).
3
Shipped You receive a tracking number by email once your package is dispatched.
4
Delivered Delivery timelines vary by destination and carrier availability.
Section 01
Order Cancellation Rights

You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.

The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.

To exercise your cancellation right, notify us with a clear written statement by:

  • Email: info@equiptestpro.com
  • Online form: equiptestpro.com/contact-us
💳
Section 02
Cancellation Processing Fees

The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.

Customer-Initiated
10%

A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.

Company-Initiated (Item Unavailable)
$0

If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.

Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.

Section 03
Conditions for Returns

To be eligible for a return, all of the following conditions must be met:

  • The Goods were purchased within the last 30 days
  • The Goods are in their original, undamaged packaging
  • The Goods are unused and unaltered from the condition received
  • A valid receipt or proof of purchase accompanies the return
Sale Items: Only regular-priced Goods are eligible for a refund. Items purchased on sale or at a discounted price cannot be refunded. This exclusion may not apply where prohibited by applicable law.

We reserve the right to refuse returns of any merchandise that does not meet the above conditions, at our sole discretion.

🚫
Section 04
Non-Returnable Goods

The following items are not eligible for return under any circumstances:

  • Goods made to your specifications or clearly personalized
  • Goods that by their nature are not suitable for return, deteriorate rapidly, or where the expiry date has passed
  • Goods not suitable for return due to health protection or hygiene reasons that have been unsealed after delivery
  • Goods that, after delivery, have become inseparably mixed with other items by their nature
  • Goods purchased on sale or at a promotional discount
📬
Section 05
How to Return Goods

You are responsible for the cost and risk of returning Goods to us. Before sending any items, please contact us at info@equiptestpro.com to obtain the return shipping address.

Important: We strongly recommend using an insured and trackable mail service. We cannot be held responsible for Goods damaged or lost during return shipment, and we are unable to issue a refund without confirmed receipt of the returned Goods or verifiable proof of delivery.
Section 06
Refund Timeline

You should expect to receive your refund within four (4) weeks of delivering your return package to the shipper. In many cases, refunds are processed sooner. The timeline breaks down as follows:

1
Transit to Us 5 to 10 business days for us to receive your return from the shipper.
2
Return Processing 3 to 5 business days to inspect and process your return once received.
3
Bank Processing 5 to 10 business days for your bank to post the refund to your account.

We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.

🎁
Section 07
Gift Returns

If the Goods were marked as a gift at the time of purchase and shipped directly to you, a gift credit equal to the return value (less any applicable processing fee) will be issued. Once the returned product is received and inspected, a gift certificate will be mailed to you.

If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.

Questions? We're here to help.

Reach out to our support team for assistance with any order or return.

Not Applicable

Condition: NA

Frequently Asked Questions

  • How do I request a quote?
    To request a quote for pricing on any item found on our site, please click on our "REQUEST A QUOTE" link. Fill out and submit the form, one of our representatives will contact you when the quote is ready.
  • What payment options do I have?
    EquipTestPro accepts a variety of payment options for your convenience. For prepayment, we accept all major credit cards (MasterCard, Visa, Amex, Discover), Purchase Orders, and wire transfers.
  • How do I retturn items?
    All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.

    Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.

    Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.

    (Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)

    Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.

Canada & US Shipping
Rewards Program
Secure Shopping
30-Day Free Returns