Jensen Car Amplifier A400HLX User Manual

®
Amplifier Installation and Operation  
A400HLX  
A600HLX  
400  
MOSFET Power Supply  
channel bridgeable  
4
HPF  
FULL  
LPF  
POWER  
BASS  
R-CHX  
LEVEL  
2
4
L-CHX  
3
5
60  
125 60  
125  
FRONT  
PROTE  
C
T
REAR  
HPF  
2CH  
3CH  
4CH  
0dB  
12dB  
40Hz 400Hz  
L-CHX  
40Hz 400Hz  
R-CHX  
8V  
.3V  
FULL  
LPF  
BASS  
LEVEL  
4
3
5
60  
125 60  
125  
2
MODE  
0dB  
12dB  
40Hz 400Hz  
40Hz 400Hz  
8V  
.3V  
Introduction  
Thank you for purchasing a Jensen amplifier. The HLX series  
amplifiers offer extreme value and performance. Proper  
installation is essential for optimal performance and long-term  
reliability. Please read through this manual first to familiarize  
yourself with your amplifier and its functions.  
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.  
Installation Assistance  
1.800.323.0221  
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1/9/02, 4:13 PM  
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A400HLX, A600HLX  
Features  
A400HLX/A600HLX 4-channel amplifiers include:  
Easy access top mounted controls  
Traditional input circuitry low and high level  
inputs  
Continuously variable high pass/low pass  
crossover  
Pre-amp output for installation flexibility  
40Hz 400Hz crossover frequency range  
Dual status LED diagnostic indicator  
Crossover mode selector switch  
Thermal, short circuit and low impedance  
protection circuitry  
Continuously variable bass boost, centered  
at 45Hz  
PWM MOSFET power supply  
Input level control  
Discrete amplifier design with complementary  
high current Bi-polar output stage  
Remote level control (A600HLX)  
Installation  
Supplies andTools Needed  
Before You Begin  
Supplies  
Black electrical tape  
Before you begin, you will need tools, supplies  
and adapters. It is best to make sure you have  
everything you need before you start.  
Amplifier Installation Kit  
Tools  
Disconnect Battery  
Cordless drill with assortment of bits  
Flat and Phillips screwdrivers  
Wire cutters/strippers  
Crimping tool  
Before you begin, always  
disconnect the battery  
negative terminal.  
+
12-volt test light or digital multimeter  
Wire brush, sandpaper or scraping tool  
(ground connection to vehicle should be a  
clean, unpainted metal surface)  
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A400HLX, A600HLX  
Routing Wires  
Location and Mounting  
Battery  
The A400HLX/A600HLX amplifiers compact  
design allows greater flexibility in mounting. It  
can be mounted under a seat or in the trunk.  
Battery  
Connector  
Fuse or  
Circuit  
When selecting a location, remember that  
amplifiers generate heat. Select a location  
where air can circulate around the amplifier.  
Do not cover the amplifier with carpets or  
enclose it behind interior trim panels. Do not  
mount the amplifier in an inverted or upside  
down configuration. Every installation will be  
a bit different based upon vehicle design.  
Check all locations and placements carefully  
before making any cuts or connections.  
Breaker  
Grommet  
To prevent  
damage to  
power wire  
Receiver  
Power Wire  
(8 gauge  
wire or  
Power Antenna  
Turn-on Wire  
(18 gauge wire)  
RCA Cables  
larger)  
Important  
Allow air circulation around the amplifier.  
Speakers  
Amplifier  
Ground Screw  
Drill 1/8" hole in  
chassis sheet metal  
Use the same ground if  
using multiple amplifiers  
Important  
If wiring connections are made wrong, the unit  
will not operate properly and it could be  
damaged. Follow the installation instructions  
carefully, or have the installation handled by  
an experienced technician.  
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A400HLX, A600HLX  
Wiring  
Power  
BRIDGE  
RF  
BRIDGE  
RR  
RF  
LF  
LF  
+
RR  
LR  
LR  
+
GND  
REM  
+ 12V  
FUSE  
PowerTerminal (+12V)  
Remote Terminal (REM)  
Connect the power antenna/amplifier turn-on  
lead from the receiver to the AMPLIFIER  
REMOTE terminal.  
Connect directly to the vehicle battery+  
terminal with 8 gauge wire (minimum).  
GND  
REM  
+ 12V  
Fuse:  
GND  
REM  
+ 12V  
A400HLX 50 AMP  
A600HLX 70 AMP  
Spade  
Connector  
Fuse or  
Circuit Breaker  
Spade  
Connector  
8 Gauge  
Wire  
To Battery+  
Terminal  
Battery  
Terminal  
Adapter  
Install as close  
to the battery  
as possible  
18 Gauge  
Wire  
To Receiver  
Power  
Antenna Lead  
Ground Terminal (GND)  
Connect to a good chassis ground. The ground  
connection should be to clean, unpainted metal  
to provide a good electrical connection.  
Fuses  
Use only blade-type fuses.  
GND  
REM  
+ 12V  
Fuse:  
A400HLX 2 x 25 AMP  
A600HLX 2 x 35 AMP  
FUSE  
Spade  
Connector  
Sheet Metal  
Screw  
8 Gauge  
Wire  
Drill 1/8" hole  
in chassis  
sheet metal  
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A400HLX, A600HLX  
Inputs, RCA Output, Remote Level Control  
INPUT OUTPUT  
INPUT OUTPUT  
REAR  
FRONT  
HI-LEVEL  
HI-LEVEL  
LR  
LR  
LF  
LF  
A400HLX  
RR  
RR  
RF  
RF  
INPUT OUTPUT  
INPUT OUTPUT  
REMOTE  
BASS  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LR  
LF  
LF  
A600HLX  
RR  
RR  
RF  
RF  
Input Wiring  
Radio  
Low Level Input (RCA Input)  
Low level (RCA) input is preferred for best  
performance. Most trunk/hatchback installations  
will require a 15-20 foot RCA cable. While pick-  
up trucks and under-seat mounting will require  
a 6-12 foot RCA cable. Connect an RCA cable  
from your receiver to the RCA input on your  
amplifier.  
Splice  
(as necessary)  
High Level Input  
High level input should be used when an RCA  
output is not available from the receiver.  
Connect the speaker outputs from the receiver  
to the high level input connector.  
INPUT OUTPUT  
INPUT OUTPUT  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LF  
RR  
RF  
White = Left (+)  
White/Black = Left ()  
Black (ground)  
Low Level  
Hi Level  
Hi Level  
Gray = Right (+)  
Gray/Black = Right ()  
Important  
Only connect the low (RCA) or high level input.  
Do not use both at the same time.  
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A400HLX, A600HLX  
Remote Level Control Rear  
Connecting other Amps  
Amplifier (A600HLX)  
INPUT OUTPUT  
INPUT OUTPUT  
LR  
LR  
LF  
LF  
RR  
RR  
RF  
RF  
PWR  
RCA Output  
The outputsignal allows you to conveniently  
connect other amplifiers to each other.  
MIN  
MAX  
REMOTE  
BASS  
Remote level control allows  
the input level to be adjusted  
for the rear speakers from an  
alternate location. It can be  
mounted under-dash or in-  
dash.  
When the amplifier is used to  
drive subwoofers, and the low  
pass crossover is activated,  
the remote level control can be  
used as a remote bass level  
control. This enables you to control the  
bass level, independent from the rest of the  
system. This is convenient for system  
tuning and/or when playing many different  
types of music.  
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A400HLX, A600HLX  
Speaker Wiring Options  
4 Speakers  
2 Speakers + Bridged Subwoofer  
HPF  
HPF  
FULL  
LPF  
FULL  
LPF  
FRONT  
FRONT  
REAR  
HPF  
REAR  
HPF  
FULL  
LPF  
FULL  
LPF  
BRIDGE  
BRIDGE  
BRIDGE  
BRIDGE  
RF  
RF  
LF  
LF  
+
RR  
RR  
LR  
LR  
+
RF  
RF  
LF  
LF  
+
RR  
RR  
LR  
LR  
+
2  
minimum  
2Ω  
minimum  
2  
minimum  
4Ω  
minimum  
2 Subwoofers/Bridged Mono (A400HLX)  
HPF  
FULL  
LPF  
FRONT  
REAR  
HPF  
FULL  
LPF  
BRIDGE  
BRIDGE  
RF  
RF  
LF  
LF  
+
RR  
RR  
LR  
LR  
+
4  
minimum  
4Ω  
minimum  
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A400HLX, A600HLX  
Tri-mode (A400HLX)  
BRIDGE  
BRIDGE  
RF  
RF  
LF  
LF  
+
RR  
RR  
LR  
LR  
+
HPF  
FULL  
LPF  
FRONT  
REAR  
HPF  
FULL  
LPF  
Important  
When running a subwoofer and two  
full-range speakers together (Tri-  
mode operation), high and low pass  
filters must be used. Failure to install  
these filters may damage your amp  
and/or speakers.  
2Ω  
2Ω  
4Ω  
2Ω  
4Ω  
=
=
2minimum  
4minimum  
2Ω  
2Ω  
4Ω  
Freq.  
Hz  
Speaker Impedance  
4 OHMS  
C
L
Inductor  
Capacitor  
2 OHMS  
8 OHMS  
L
C
L
C
L
C
80  
100  
4.1mH 1000µF  
8.2mH  
6.2mH  
4.7mH  
3.3mH  
2.4mH  
1.6mH  
1.0mH  
.82mH  
.62mH  
.51mH  
.33mH  
.16mH  
500µF  
400µF  
300µF  
200µF  
150µF  
100µF  
68µF  
50µF  
39µF  
33µF  
22µF  
10µF  
15mH  
12mH  
10mH  
250µF  
200µF  
150µF  
100µF  
75µF  
50µF  
33µF  
26µF  
20µF  
16µF  
10µF  
5µF  
3.1mH  
2.4mH  
1.6mH  
1.2mH  
.8mH  
800µF  
600µF  
400µF  
300µF  
200µF  
136µF  
100µF  
78µF  
130  
200  
6.8mH  
4.7mH  
3.3mH  
2.0mH  
1.6mH  
1.2mH  
1.0mH  
.68mH  
.33mH  
250  
400  
600  
.5mH  
800  
.41mH  
.31mH  
.25mH  
.16mH  
.08mH  
1000  
1200  
1800  
4000  
66µF  
44µF  
20µF  
9
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®
A400HLX, A600HLX  
Indicators and Controls  
HPF  
POWER  
FULL  
BASS  
R-CHX  
LEVEL  
L-CHX  
3
5
60  
125 60  
125  
2
4
LPF  
FRONT  
PROTECT  
REAR  
HPF  
2CH  
3CH  
4CH  
0dB  
12dB  
40Hz 400Hz  
L-CHX  
40Hz 400Hz  
R-CHX  
8V  
.3V  
FULL  
LPF  
BASS  
LEVEL  
3
5
60  
125 60  
125  
2
4
MODE  
0dB  
12dB  
40Hz 400Hz  
40Hz 400Hz  
8V  
.3V  
Crossover (X-OVER)  
Adjust the crossover to accommodate your  
chosen installation method.  
Tri-mode/Three channel operation  
An amplifier is usually configured for tri-mode  
operation when you want to use one amplifier to  
drive a pair of front speakers and subwoofer(s).  
In other words, when you want drive a complete  
system with one amp. Your Jensen amplifier is  
capable of tri-mode operation.  
LPF(low pass filter) Select  
this filter when the amplifier will  
be driving woofers or  
subwoofers.  
LPF  
FULL  
HPF  
FRONT  
FULLCrossover is not active,  
amplifier is in full range”  
mode.  
Important  
REAR  
LPF  
Tri-mode operation requires using “passive  
crossovers”. These crossovers are available at  
your local retailer or install shop. Failure to  
install these filters may damage your amplifier  
and/or your speakers.  
FULL  
HPF  
HPF(high pass filter) Select  
this filter when the amplifier will  
be driving full range/separate  
speakers, and you want to limit  
the bassgoing to these  
speakers.  
See page 9.  
Power / Protect Light  
POWER  
A dual status LED indicator illuminates  
red or green to indicate the status of  
the amplifier.  
PROTECT  
Green Power applied, ON  
Red Protection circuit activated, STANDBY  
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A400HLX, A600HLX  
2CH / 3CH / 4CH  
2 Channel (A400HLX)  
2CH  
When the input selector is set  
to 2CH, the amplifier is  
The A400HLX/A600HLX can be configured for  
three different input modes: 4 channel, 3 channel  
or 2 channel.  
3CH  
4CH  
configured for bridged stereo  
operation. The amplifier will  
need a two channel input even  
though there are four inputs. In  
2CH the following RCA inputs  
will be used:  
When the input selector is set  
to 4CH, the amplifier will  
operate as a standard 4  
channel amp with all RCA  
inputs connected.  
4 Channel  
2CH  
3CH  
4CH  
INPUT OUTPUT  
INPUT OUTPUT  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LR  
LF  
INPUT OUTPUT  
INPUT OUTPUT  
RR  
RF  
RF  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LF  
RR  
RF  
Note  
Although the above illustrations indicate the  
low level input being used, the same  
connections would apply to the high level  
input.  
When the input selector is set  
to 3CH, the amplifier is  
3 Channel  
2CH  
3CH  
4CH  
configured for stereo/mono  
operation. The front channels of  
the amplifier operate in stereo  
mode. The rear channels of the  
amplifier are internally bridged  
for mono operation. In 3CH the  
following RCA inputs will be  
used:  
INPUT OUTPUT  
INPUT OUTPUT  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LR  
LF  
LF  
RR  
RR  
RF  
RF  
INPUT OUTPUT  
INPUT OUTPUT  
REAR  
HI-LEVEL  
FRONT  
HI-LEVEL  
LR  
LR  
LF  
High Input  
RR  
RF  
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A400HLX, A600HLX  
Level  
Bass  
BASS  
LEVEL  
3
5
BASS increases the volume of the  
bass at 45Hz by up to 12 db.  
2
4
The input level control matches the  
output of your radio to the input of  
the amplifier. After the installation is  
complete, make sure the input level  
control on the amp is turned down all  
the way (counterclockwise or all the  
way to the left). Play a tape or CD  
(make sure bass and treble settings  
0dB  
12dB  
8V  
.3V  
Use very carefully!  
BASS  
LEVEL  
3
5
2
4
0dB  
12dB  
8V  
.3V  
or EQ are flat too) and turn the volume up  
slowly until you just start to hear distortion.  
Now back the volume down just a bit. On the  
amp, slowly turn up the input level control  
(clockwise or to the right) until you just start to  
hear distortion and back it down a bit. Now  
your radio and amplifier levels are matched.  
Testing  
Before you finish the installation, you should do the following tests to make sure the wiring is correct  
and everything is operating properly.  
Test Speaker Connections  
Reconnect Battery  
These tests make sure the speakers are  
connected right. If speakers dont play at all,  
one (or both) speaker wires may be  
disconnected. If the wrong speaker plays (you  
hear left speaker when you expect right  
speaker) make sure you connected the wires  
correctly.  
When wiring is complete,  
reconnect the battery  
negative terminal.  
+
Test Power Wiring  
1. Turn on the receiver but do not turn up  
the volume. The amplifier power light  
should come on. If not, check the  
REM and +12V wires.  
2. Turn up the receiver volume slightly. All  
speakers should operate. If not, check  
wiring connections at amplifier and  
speakers.  
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A400HLX, A600HLX  
Troubleshooting  
Problem  
Possible Cause  
Corrective Action  
Amplifier does not operate  
(power LED not on) when  
vehicle and radio are on  
No power to +12V terminal  
Repair wire or connections.  
No power to remote wire with  
radio on  
Check connections to radio with test light.  
Fuse blown  
Check fuse.  
Radio volume needs to be  
turned up too high for amp  
to work  
Input level control adjusted too low  
Adjust input level control.  
Radio volume is too sensitive  
Input level control adjusted too high  
Adjust input level control to lower setting.  
Replace speaker.  
Sound from only one speaker Defective speaker  
Poor connections to speaker (wire)  
Check connections.  
RCA input cable defective  
Replace cable.  
Input level control adjusted too high  
Speaker wires shorting together  
Power wires hooked up incorrectly  
Speakers blown or defective  
Adjust input level control.  
Separate speaker wires and insulate.  
Check power wire connections.  
Check speakers.  
Sound distorted  
Blows fuses  
Engine noise  
(Ignition noise/static or  
Alternator whine)  
Improper ground connections  
Ground loop(s)  
Reroute RCA away from main power wires.  
Reroute RCA cable.  
Make sure amp is grounded to a clean, solid part of  
the chassis/frame.  
Protect light comes on/  
amplifier shuts down  
Amp is in thermal protection  
Let amp cool down before attempting to turn back on  
(some installations may require a fan to keep the amp  
cool, especially if you are driving subwoofers with the  
amp).  
Faulty speaker connection and/or  
crossover  
Check speakers and/or crossovers for loose or bad  
connections.  
Low battery voltage  
Make sure you are getting between 10.8-15.6 volts to the  
amplifier with a digital multimeter measured at the amplifier.  
Speaker impedance less than 2 ohms  
per channel  
If you are using 4 ohm speakers you cannot have more  
than two speakers wired in parallel per channel.  
Amp will not operate into 2 ohms bridged.  
No output on channels  
Speaker wires not connected to  
speakers properly  
Refer to pages 6 9 for proper installation.  
Input hooked up incorrectly  
13  
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®
A400HLX, A600HLX  
Specifications  
A400HLX/A600HLX 4-Channel Amplifiers  
Frequency Response....................................................................................... 20 Hz-20 kHz ± 0.5 dB  
Signal to Noise Ratio @ Rated Power....................................................................................>100 dB  
Channel Separation @ Ref. Power............................................................................... >65 dB, 1 kHz  
THD & IMD @ Ref. Power into 2 ohms ..................................................................................... <0.8%  
Speaker Impedance.............................................................................................................. 2-8 ohms  
Input Impedance ................................................................................................................. 47 k ohms  
Bass Boost Center Frequency .....................................................................................................45Hz  
Crossover....................................................................................................12 dB/octave, Butterworth  
Power Requirement .................................................................. 14.4 VDC (10.8-15.6 VDC allowable)  
A400HLX  
Power output @ 14.4 VDC, 20-20 kHz  
(4 ohms) ........................................................................ 50 Watts per channel RMS, < 0.5% THD  
(2 ohms) ........................................................................ 75 Watts per channel RMS, < 0.8% THD  
(4 ohms) bridged ......................................................... 150 Watts per channel RMS, < 0.8% THD  
Dimensions .................................................................3" x 11.125" x 10" (76mm x 283mm x 254mm)  
A600HLX  
Power output @ 14.4 VDC, 20-20 kHz  
(4 ohms) .............................................................. Front: 50 Watts per channel RMS, < 0.5% THD  
Rear: 100 Watts per channel RMS, < 0.5% THD  
(2 ohms) .............................................................. Front: 75 Watts per channel RMS, < 0.8% THD  
Rear: 150 Watts per channel RMS, < 0.8% THD  
(4 ohms) bridged ............................................... Front: 150 Watts per channel RMS, < 0.8% THD  
Rear: 300 Watts per channel RMS, < 0.8% THD  
Dimensions .................................................................3" x 11.125" x 13" (76mm x 283mm x 330mm)  
Specifications subject to change without notice.  
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Limited One Year Warranty–  
USA and Canada  
Length of Warranty. This warranty from Recoton Mobile  
Electronics, Inc. shall be in effect for a period of one year  
from the date of the first consumer purchase.  
Canadian Purchasers. The product should be returned  
to the Jensen dealer from whom it was purchased and  
such dealer either will service or arrange for service of  
the product.  
Persons Protected. This warranty will be enforceable by  
the original owner during the warranty period so long as  
proof of date of purchase from an authorized Jensen dealer  
is presented whenever warranty service is required.  
If shipment of the product is required, it should be packed  
securely. The original dated bill of sale must always be  
included with the product as proof of warranty coverage.  
What is Covered. Except as otherwise specified below,  
this warranty covers all defects in material and  
workmanship in this product. The following are not covered:  
damage resulting from accident, misuse, abuse, neglect,  
product modification, improper installation, incorrect line  
voltage, unauthorized repair or failure to follow instructions  
supplied with the product; damage occurring during  
shipment (claims must be presented to the carrier);  
elimination of car static  
What We Will Pay For. We will pay for all labor and  
material expenses required to repair the product, but you  
must pay any labor costs for the removal and/or installation  
of the product. If the product is shipped for warranty  
service, you must prepay the initial shipping charges, but  
Jensen will pay the return shipping charges if the product is  
returned to an address inside the USA or Canada.  
Exclusion of Certain Damages. Jensens liability is  
limited to the repair or replacement, at our option, of any  
defective product and shall not include incidental or  
consequential economic damages of any kind.  
or other electrical interferences; any product purchased  
outside USA or Canada, or on which the serial number  
has been defaced, modified or removed.  
Some states and/or provinces do not allow limitations on  
how long an implied warranty lasts and/or do not allow the  
exclusion or limitation of incidental or consequential  
damages, so the above limitations and exclusions may not  
apply to you.  
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.  
This warranty gives you specific legal rights, and you may  
also have other rights which vary from state to state and  
province to province.  
®
Recoton Mobile Electronics, Inc.  
1090 Emma Oaks Trail  
Lake Mary, Florida 32746  
©2002 Recoton  
REC002_A4n600HLX_E  
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1/9/02, 4:13 PM  

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