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How to Install and Operate
the LXA300 Amplifier

®

Contents

 Technical Assistance

For technical assistance with the operation or installation
of the LXA300, call 1-800-323-0221.

Welcome!
What you're holding in your hands is no ordinary
owner's manual. We've tried to make the instructions
in this book clear and easy to follow.
For your Jensen amplifier to work right, it must be
installed correctly. This manual will show you how to
install your new amplifier like a pro. It's a good idea to
read all of these instructions before you begin the
installation. Most installations are straightforward and
can be handled by a do-it-yourselfer with the right
tools, patience, and the ability to follow instructions.
But, do-it-yourself installation isn't for everyone. If you
still don't feel confident after reading this book,
consider turning the installation job over to someone
better suited to it.

Warranty Service
If your Jensen amplifier should ever require service,
you will need to have the original dated receipt. If you
ever need to return the unit for any reason, always
include the receipt with the product.

Features

........................................

2

Installation

...................................

2

Before You Begin
Installation ..................................... 2

Amplifier Location .......................... 2
Disconnect Battery ........................ 2

• Amplifier Installation Kit ............. 2

Supplies and Tools
Needed .......................................... 3
Routing Wires ................................ 3

• Bigger is Better .......................... 3

Wiring

.............................................

4

Power and Outputs ........................ 4
Power Terminal (BATT +12V) ........ 4

Ground Terminal (GND) ................. 4
Remote Terminal (RMT +12V) ....... 4
Fuses ............................................. 4
Inputs and Controls ....................... 5

Input Wiring .................................... 5
Pass Output ................................... 5
Power Light .................................... 5
Protect Light .................................. 5

Input Level Control ........................ 6
Bass Boost ..................................... 6
Crossover ...................................... 6
Speaker Wiring .............................. 7

Testing

..........................................

9

Reconnect Battery ......................... 9

Test Power Wiring .......................... 9
Test Speaker Connections ............ 9

• Dealing with Alternator

Noise .......................................... 9

• Installing in Trunk ..................... 10
• Crimp Connections .................. 10
• Securing Wires ........................ 10
• Speaker and

Power Wires ............................ 10

Troubleshooting

.......................

11

Specifications
and Warranty

.............................

12

50

250

HPF

ON

OFF

BASS
-BOOST

LEVEL

MIN

MAX

LPF

50

250

®

HPF

LPF

FULL

X-O

VER

PO

WER

HI INPUT

LO

W INPUT

L

R

PR

OTECT

PASS

L

R

Summary of Contents for LXA300

Page 1: ...er suited to it Warranty Service If your Jensen amplifier should ever require service you will need to have the original dated receipt If you ever need to return the unit for any reason always include the receipt with the product Features 2 Installation 2 Before You Begin Installation 2 Amplifier Location 2 Disconnect Battery 2 Amplifier Installation Kit 2 Supplies and Tools Needed 3 Routing Wires...

Page 2: ...ers It is best to make sure you have everything you need before you start There is a list of supplies and tools on the next page Features 150 watts RMS bridged into a 4 ohm load Bridgeable design to direct full power to one speaker Audio Amplifiers Amplification offers two advantages The LXA300 amplifier can make the sound of your receiver fuller and richer even at low volume levels Many automotiv...

Page 3: ...et of 18 gauge wire for the remote turn on power antenna lead RCA cable for signal input from radio 20 feet for trunk installation 12 feet for under seat installation Two 8 gauge ring terminals one for the battery connection and the other for the ground connec tion at the amp You may need two additional ring terminals if you are using a circuit breaker at the battery Two 8 gauge barrel connectors ...

Page 4: ...r on whenever the re ceiver is turned on If a power antenna lead is not available connect this wire to the radio or accessory fuse Use only one 30 amp blade type fuse Fuses 30A FUSE 30A FUSE POWER RMT GND 12V SPEAKER L L R R Spade Connector 8 Gauge Wire To Battery Terminal 30 amp Fuse or Circuit Breaker Battery Terminal Adapter Install as close to the battery as possible Not Supplied RMT GND 12V R...

Page 5: ...lug as shown Inputs may be high level from the receiver s speaker or low level from special low level outputs Low level input is preferred for best performance White Left White Black Left Gray Right Gray Black Right Black ground POWER HI INPUT LOW INPUT L R PROTECT PASS L R The power light comes on when 12 volt power is available at both the battery 12 volt and RMT wires Power Light The red protec...

Page 6: ...pass filter blocks very low tones from the speak ers Use with 6 or smaller speakers Crossover X OVER LEVEL MIN MAX BASS BOOST increases the volume of bass by up to 6 dB at 45Hz Bass Boost LEVEL MIN ON OFF BASS BOOST LPF FULL HPF MAX LPF 50 250 HPF 50 250 X OVER Input Level Control The input level control matches the output of your radio to the input of the amplifier After the installation is compl...

Page 7: ...7 LXA300 Speaker Wiring 2 Subwoofers 2 Speakers L L R R RCA Cables 2 4Ω 2 4Ω LPF FULL HPF X OVER 2 4Ω 2 4Ω RCA Cables L L R R LPF FULL HPF X OVER ...

Page 8: ...er Tri mode operation high and low pass filters must be used Failure to install these filters will damage your amp and or speakers RCA Cables 2 4Ω 4Ω 2 4Ω L L R R Low Pass Filter available at most car stereo installation stores High Pass Filters LPF FULL HPF X OVER 4Ω RCA Cables L L R R 4Ω minimum LPF FULL HPF X OVER ...

Page 9: ...everything is operating correctly reassemble vehicle trim and dashboard Before you finish the installation you should do the following tests to make sure the wiring is correct and everything is operating properly Dealing with Alternator Noise The vehicle alternator can cause a siren sound in the speakers that changes with engine speed To prevent alternator noise Do not bundle RCA cables with speak...

Page 10: ...Power wires can generate a siren sound in the speakers Run speaker and power wires on opposite sides of the car Professional Tip Professional Tip Securing Wires Be proud of your installation Use wire ties to bundle wires together when possible But never bundle speaker wires and power wires together Secure loose wires to the vehicle to make sure they don t rub or rattle Installing in Trunk When ins...

Page 11: ...correctly Repair wire or connections Check connections to radio with test light Check fuse Adjust input level control gain control Adjust input level control to lower setting Replace speaker Check connections Separate speaker wires and insulate Replace cable Adjust input level control Separate speaker wires and insulate Check power wire connections Check speakers Disconnect audio inputs to amplifi...

Page 12: ...sed outside USA or Canada or on which the serial number has been defaced modified or removed How You Can Get Service U S Purchasers Please telephone Jensen at 1 800 323 4815 We will either inform you of the name and address of an authorized Jensen repair station which will service the product or will advise you to send the product to a factory service center Canadian Purchasers The product should ...

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