Fusion MS-OS420 is a pair of 4-inch, 2-way marine box speakers designed for outdoor use, featuring an 86 dB efficiency rating, a frequency response of 80 Hz to 20 kHz, and a 4-ohm impedance. They offer versatile mounting options and are ideal for boats where flush mount installation isn't practical.
Fusion MS-OS420 is a pair of 4-inch, 2-way marine box speakers designed for outdoor use, featuring an 86 dB efficiency rating, a frequency response of 80 Hz to 20 kHz, and a 4-ohm impedance. They offer versatile mounting options and are ideal for boats where flush mount installation isn't practical.
PUBLISHED BY FUSION ELECTRONICS LIMITED
©Copyright 2012 by Fusion Electronics Limited
All rights reserved. Specifi cations and design are subject to change without notice.
USER / INSTALLATION MANUAL
MS-OS420
4” 2 WAY MARINE
BOX SPEAKERS
2
7
INSTALLATION TIPS
TROUBLESHOOTING
Any speaker will perform to its best capabilities, when correctly placed in
the listening area. FUSION Engineers recognise that unlike a home or motor
vehicles installation, there are an extremely wide range of marine environments
where speakers may be placed. FUSION Marine Speakers are optimised to
perform in the widest possible range of mounting locations, but a little thought
and care with placement will always be rewarded with better sound.
• High frequencies are directional. Placing the speakers low down in
the boar will lose some of this information.
• Speakers should be placed to simulate “sound stage”, by being
placed where you are able to hear both speakers in a stereo situation.
Before you contact your FUSION dealer or service centre, FUSION requires that
you do some simple trouble shooting to help diagnose the problem.
Problem Solution
No sound Check all connections from the
source unit amplifi er to the speaker
terminals are connected correctly
System lacks in bass Check the connections from the
source unit/amplifi er to the speaker.
Ensure the positive wire from the
source is connected to the positive
of the speaker.
System lacks in
high frequencies
Check polarity
Check the bass / treble control
settings on the source unit
Distorted sound Check all wiring
Check that it is not the surrounding
panels of the craft rattling.
Check connections from the source
to the speaker.
YOU CAN HELP PROTECT THE ENVIRONMENT
Please remember to respect the local regulations:
Hand in the non-working electrical equipment to an appropriate waste disposal centre.
6
INSTALLATION GUIDE
1. Check mounting position for adequate space (See caution).
2. Place the mounting bracket in position, then mark and drill
the mounting holes.
3. Place the mounting bracket and insert screws.
4. Connect the wires from the source unit to the box speaker ensuring the
correct polarity is observed.
5. Attach the box speaker to the bracket using the mounting knobs supplied.
6. Adjust the angle of the speaker to the preferred position before tightening
the mounting knobs.
CAUTION: For speaker mounting restrictions, please refer to manufacturers
recommendations for related navigation equipment.
3
• CONTENTS .....................................................................................................pg 3
• CONTENTS OF BOX ........................................................................................pg 4
• PRODUCT SPECIFICATIONS ..........................................................................pg 4
• LINE DRAWINGS & DIMENSIONS ....................................................................pg 5
• INSTALLATION GUIDE ...................................................................................pg 6
• INSTALLATION TIPS ......................................................................................pg 7
• TROUBLESHOOTING ......................................................................................pg 7
CONTENTS
REGISTER YOUR PRODUCT ONLINE
For your own peace of mind, register your product purchase online at
www.fusionelectronics.com
We’ll keep you up to date with any news related to your product, any software
upgrades or new accessories to help you get the most from your product.
RECORD YOUR PRODUCT DETAILS HERE:
MODEL NUMBER DATE OF PURCHASE
AFFIX RECEIPT HERE
4
CONTENTS OF BOX
PRODUCT SPECIFICATIONS
FUSION Marine/Outdoor Speakers are optimised for outdoor use. FUSION
Box Speakers are extremely versatile and perfect for boats where fl ush mount
installation is not practical.
These speakers have been thoroughly tested to ensure consistent
and reliable performance.
LIST OF CONTENTS
• 2 X Speakers
• 2 X Connection Wire
• Mounting Hardwire
• 2 X Mounting Brackets
• 4 X Mounting Knobs
• Manual
• Warranty Card
Tweeter Type PEI Cone
Max Power (watts) 100
Effi ciency (1W1M) 86db
Frequency Response 80Hz – 20kHz
Impedance 4 ohms
5
LINE DRAWINGS & DIMENSIONS
200mm
7-7/8”
2.75mm
3/32“
61mm
2-13/32“
40mm
1-9/16“
138mm
5-7/16“
137mm
5-3/8“
35mm
1-3/8“
200mm
7-7/8”
185 mm
7-9/32”
195.5 mm
7-22/32”
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2
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3
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Fusion MS-OS420 is a pair of 4-inch, 2-way marine box speakers designed for outdoor use, featuring an 86 dB efficiency rating, a frequency response of 80 Hz to 20 kHz, and a 4-ohm impedance. They offer versatile mounting options and are ideal for boats where flush mount installation isn't practical.
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