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Fusion MS-AM504 User Manual

Fusion MS-AM504
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Four Channel Installation
FUSE
FL FR RL R R
FL
FR
RL
RR
R
L
R
L
R
R
R
FU
SE
F
L F
R
R
L
F
L
R
R
L
R
R
L
010
INSTALLATION
Trouble Shooting
Problem Cause Solution
Power LED
not ‘ON
Fuse at battery blown or
not installed
Replace with correct type and rated fuse.
Improper connections
Check that the ground wire, power wire and the
remote wires are connected to the correct terminal
Status LED
‘ON’
Fuse blown
Replace with correct type and rated fuse.
Amplifier too hot
Move the amplifier into a more ventilated area
Speaker wires shorted
Check that there are no speaker wires shorted to any
other wire and also check if any wire is shorted to ground
Internal malfunction
Disconnect all wires except ground, power and remote.
Then turn the amplifier ’ON’, if the protection light is still
’ON’ then return for service

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Questions and Answers:

Fusion MS-AM504 Specifications

General IconGeneral
BrandFusion
ModelMS-AM504
CategoryAmplifier
LanguageEnglish

Summary

Feature Overview

2-Ohm Stable Stereo

Provides options for connecting extra speakers in parallel, 2 per channel at 2-Ohms.

Marine Grade Connections

Nickel plated RCA connectors and stainless components improve signal flow for optimum output.

Class-AB Design

500 Watt 2-Ohm stable design ensures clean and powerful amplification.

Conformal Coated Circuitry

Provides added protection from salt air and moisture for product life.

Marine Grade Chassis

Stainless steel end and bottom plates offer a stunning finish with environmental protection.

RCA Line Out

A pass-through RCA output enables linking multiple amplifiers for enhanced system performance.

Control Descriptions

Power And Status LEDs

Shows if the amplifier is powered up and if faults are present.

Crossover Selector

Sets the appropriate mode of operation (OFF, LP, HP).

Low Pass Filter

Filters mid to high frequencies for subwoofers, set at 100Hz or below.

High Pass Filter

Filters low bass frequencies for speakers smaller than 6”, set at 65Hz or above.

Bass Boost Control

Variable control to increase bass boost at 45Hz from 0 to +18dB.

Subsonic Filter

Filters sub-bass frequencies below the set point at 18dB/octave.

Level Control

Adjusts input signal level to match the head unit for correct gain setting.

RCA Input Channels

Connects to the LOW LEVEL output connection from the head unit.

RCA Output

Connects to a secondary amplifier; a summed output from RCA inputs.

Ground Connection

Connects directly to a suitable ground point via a 4-gauge power cable.

Remote Connection

Connects to a switched +12V source for turning the amplifier on/off.

Power +12V Connection

Connects to the battery positive terminal via a 4-gauge power cable and inline fuse.

Fuses

Specifies the correct type and rating of fuses, MS-AM504 has 2x 25A.

Speaker Output

Refers to channel installation diagrams for correct speaker connection.

Installation and Connection

Mounting Guidelines

Provides guidance on selecting a location for mounting the amplifier, ensuring airflow and protection.

Installation Options

Recommends professional installation or careful DIY following the manual.

Power Wiring

Details wiring directly to the battery with appropriate cable size and grommets.

Ground Connection

Explains how to connect the ground cable using the same gauge as the power cable.

Speaker Load Requirements

Advises on minimum impedance requirements (2 ohms stereo, 4 ohms bridged mono).

Remote Turn-on Connection

Details connecting the terminal to a switched +12V source for amplifier power on/off.

Inputs & Gain Setup

Low Level Inputs

Proper routing of RCA cables to minimize noise interference.

Level Control Adjustment

Procedure for setting input sensitivity to match the head unit.

Two Channel Installation

Power Cable Calculator

Three Channel Installation

Trouble Shooting

Power LED Not 'ON'

Lists causes like blown fuse or improper connections and their solutions.

Status LED 'ON'

Lists causes like overheating or shorted speaker wires and their solutions.

Four Channel Installation

Specifications

Limited 1 Year Marine Consumer Warranty

Warranty Exclusions

Conditions under which the warranty is void, including misuse and unauthorized modifications.

Warranty Claim Procedure

Step-by-step process for returning the product for warranty service.

Australian Consumers Warranty

Warranty Exclusions for Australian Consumers

Lists conditions under which the warranty is void for Australian consumers.

Other Warranty Exclusions

Details additional exclusions and consumer responsibilities for Australian consumers.

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