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XL-400 High Power
4/3/2-Channel Bridgeable
Amplifier
Owner’s Manual
Please read before using this equipment.
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ˆ
Contents
Features .................................................................................................................................. 3
Preparation ............................................................................................................................. 4
Supplied Hardware ............................................................................................................ 4
Choosing a Mounting Location .................................................................................. 4
Preparing the Mounting Area ..................................................................................... 5
Routing Cables and Wires ......................................................................................... 5
Installation Order ........................................................... ..................................... ............... 5
Before You Make the Connections .................................................................................... 5
Connecting Ground and Switched/Primary Power ............................................................ 6
Connecting Inputs ................................................ .................................................................. 8
Low-Level Inputs ............................................................................................................... 8
High-Level (Speaker Wire) Inputs ..................................................................................... 9
Four Speaker Outputs ............................................................................................. 10
Two Speaker Outputs .............................................................................................. 11
Connecting Speakers ...................................................................................................... 12
Preparing the Speaker Wires ................................................................................... 12
Connecting Four Speakers ...................................................................................... 13
Connecting Two Speakers (Unbridged Connection) ................................................ 13
Connecting Two Speakers (Bridged Connection) .................................................... 14
Connecting Two Speakers and One Subwoofer (Unbridged Connection) ............... 14
Connecting Two Unbridged Speakers and One Bridged Subwoofer ....................... 15
Completing the Installation ................................................................................................. 16
Testing the Connections .................................................................................................. 16
Mounting the Amplifier .................................................................................................... 16
Operation .............................................................................................................................. 18
Turning On the Amplifier ................................................................................................. 18
Adjusting the Audio Level ................................................................................................ 18
Adjusting Frequency Crossover ...................................................................................... 19
Troubleshooting ................................................................................................................... 20
Care ................................................................................................................................ 21
Replacing a Fuse ..................................................... .. ... .................................................. 21
Replacing the SFE-Type Fuse ................................................................................. 21
Replacing the Blade-Type Fuses ............................................................................. 21
Specifications ....................................................................................................................... 23
©
2000 Tandy Corporation.
RadioShack and RadioShack.com are trademarks used by Tandy Corporation.
2
All Rights Reserved.
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ˆ
Features
Your RadioShack High Power 4/3/2-Channel Bridgeable Amplifier produces a total of
400 watts to give added punch and power to
your vehicle’s existing auto sound system.
The amplifier produces up to 200 watts per
channel (if bridged) of clean, powerful sound
at all audio frequencies with minimum distortion. You can connect your auto sound system’s low-level or speaker-level outputs to
this amplifier.
Its features include:
14K Gold-Plated Noise-Isolated Low-Level Input Jacks
(preamplifier) signal inputs to match your
auto sound system’s output for the best highfidelity performance.
14K Gold-Plated Speaker Terminals
signed for low impedance, high conductivity,
and minimum corrosion, to provide the highest signal transfer and lowest sound distortion.
Input Level Controls
level of the audio signals that enter the amplifier.
Automatic Power Switching
matically turn the amplifier on or off when
you turn your auto sound system on or off
(depending on how you hook up the amplifier).
Bridging Capability
amplifier’s four 100-watt channels so you can
use the amplifier with only two channels that
produce a total of 200 watts from each channel.
Mute Turn On Circuit
thump you hear when you turn on some amplifiers.
— let you connect low-level
— de-
— let you adjust the
— can auto-
— lets you combine the
— eliminates the
Power Indicator
supplied to the amplifier.
Protection Indicator
shuts itself down.
Crossover Frequency Circuit
adjust the crossover frequency from 45–400
Hz. This lets you set up the amplifier so you
can connect a subwoofer.
Short Circuit Protection
plifier’s sound if any output channel shorts,
alerting you to turn off the auto sound system.
Auto-Off
plifier to protect the amplifier from overheating or input overloads. The amplifier restarts
automatically when it cools or the problem is
corrected.
— temporarily shuts down the am-
— lights when power is
— lights if the amplifier
— lets you
— distorts the am-
THE FCC WANTS YOU TO
KNOW
Your amplifier might cause TV or radio interference even when it is operating properly.
To determine whether your amplifier is causing the interference, turn off your amplifier. If
the interference goes away, your amplifier is
causing it. Try to eliminate the interference
by:
• moving your amplifier away from the
receiver
• contacting your local RadioShack store
for help
If you cannot eliminate the interference, the
FCC requires that you stop using your amplifier.
Features
3
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ˆ
Preparation
SUPPLIED HARDWARE
Your amplifier comes with the following items. Be sure you locate everything shown before you
store or dispose of the packing materials.
Power Wire (Red) (1)
Ground Wire (Black) (1)
Remote Wire (Blue/White) (1)
4-Pin Connector with Wire (2)
Sheet Metal Screws (4)
BEFORE YOU BEGIN THE
INSTALLATION
Before you install your amplifier, read all the
instructions in this owner’s manual. You
should be able to answer all of the se questions about your vehicle’s electrical and auto
sound systems.
• Does my vehicle have an auto sound
system, such as a car stereo or CD
player, already installed? (You must
have an existing auto sound system to
use this amplifier.)
• How do I connect a wire to the fuse box?
• Which of the auto sound system’s wires
is the power wire?
• Which of the auto sound system’s terminals are low-level outputs and which are
high-level (speaker) outputs?
Flat Washers (4)
Lock Washers (4)
Also, be aware that installation in your vehicle might require cutting or modifying your
vehicle.
Twist-On
Terminal
Connectors (9)
Choosing a Mounting Location
A good location for mounting the amplifier is
in your vehicle’s trunk. Wherever you decide
to mount it, choose a mounting location that:
• Does not interfere with the vehicle’s
operation
• Lets you drill mounting holes without
damaging other vehicle component s
• Allows enough space around the cooling
fins for proper airflow and cooling
• Lets you easily see the amplifier’s
POWER and PROTECTION indicators
4
Preparation
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Warning:
is on. Do not touch the amplifier or place
flammable objects near it.
The amplifier gets very hot while it
Preparing the Mounting Area
Before you mount the amplifier, make sure
you have these materials.
• an adapter harness
• additional wire
• shielded audio cables
• 16- or 18-gauge marked or color-coded
wires
Then confirm that the amplifier fits in your vehicle’s available mounting area. This amp lifier requires a 5
wide by 171/2-inch deep (13.9 × 34.3 × 43.1
cm) mounting area with adequate ventilation
space.
1
/2-inch high by 131/2-inch
Routing Cables and Wires
Avoid routing the connection cables and any
speaker wires near moving parts or sharp
edges. You can usually route wires and cables along the wiring channel beneath the
vehicle’s door facings by carefully removing
the molding that holds the carpet in place. After routing the cables and wires, replace the
molding.
INSTALLATION ORDER
For trouble-free installation, simply follow the
sections in this owner’s manual in order. First
make all the connections by temporarily connecting the amplifier to:
1
Ground and power
Then test the connections. When you verify
that everything works as expected, disconnect the amplifier, mount it in your vehicle,
and reconnect it.
Caution:
in the order shown, damage to the amplifier
and your auto sound system is possible if
any wire connections are made incorrectly.
Note:
you plan to connect with the name of the terminal you will connect it to.
If you do not make the connections
For easier installation, mark each wire
BEFORE YOU MAKE THE
CONNECTIONS
The supplied connection cables include all
the lead wires you need to connect the amplifier to ground, power, and your existing
auto sound system.
Important:
• Do not cut these wires. If you cut any
wire, you cannot obtain a refund or
exchange on this product. However,
will
RadioShack
vice if you cut a wire and find the product is defective.
• If the connectors on your vehicle’s auto
sound system are not compatible with
the amplifier’s connectors, you might
need an adapter harness to complete
the connections. RadioShack stores sell
adapter harnesses for most vehicles.
You might need additional wire, depending
on your individual auto sound system, to
complete the connections. Your local RadioShack store carries a full line of wire and
wire management accessories.
provide warranty ser-
2
Your auto sound system’s outputs
3
Your speakers
Preparation
5
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Cautions:
100 watts per channel if you connect
your auto sound system to two pairs of
• For added safety and to protect your
amplifier and auto sound system, disconnect the cable from your vehicle’s
–
negative (
) battery terminal before you
begin.
• Be sure your speakers can handle as
much as 400 watts of power (200 watts
per channel if you connect your auto
sound system to one pair of speakers
speakers or one pair of speakers and a
subwoofer). Each speaker must have an
impedance of at least 4 ohms. Y our local
RadioShack store carries a full line of
speakers.
To make it easier to gauge wire length and
connect the amplifier, temporarily place the
amplifier as close as possible to the selected
mounting location.
and bridge the amplifier’s outputs, or
CONNECTING GROUND AND SWITCHED/PRIMARY POWER
Fuse
Red
Black
Holder
Blue/White
Chassis
Ground
Vehicle’s Battery
Auto Sound System
Follow these steps to connect the amplifier to
ground, switched power, and primary power.
1. If you have not done so already, disconnect the cable from your vehicle’s negative (–) battery terminal.
2. Use a screwdriver to connect the spade
end of the supplied black ground wire to
GND
the amplifier’s
(ground) terminal.
3. Connect the black ground wire’s other
end to a chassis ground, such as a
metal bolt attached to a metal part of the
vehicle’s frame. Be sure the bolt is not
6
Preparation
Switched Power Lead
insulated from the chassis by a plastic
part.
4. Use a screwdriver to connect the spade
end of the supplied blue/white wire to
REM
the amplifier’s
(remote power) ter-
minal.
If your auto sound system has a
5.
switched power lead
, connect the blue/
white wire’s other end to your auto
sound system’s switched power lead
using one of the supplied twist-on terminal connectors.
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This connection turns on the amplifier
when you turn on the auto sound system, and turns off the amplifier when
you turn off the auto sound system. This
prevents your vehicle’s battery from
being drained if you leave your amplifier
on when you turn off your auto sound
system.
If your auto sound system does not have
a switched power lead
, connect the
blue/white wire’s other end to a point in
your vehicle’s fuse block that has power
only when you turn on the ignition or turn
the key to ACC.
This connection turns on the amplifier
when you turn on the ignition or turn the
key to ACC, and turns off the amplifier
when you turn off the ignition. This prevents your vehicle’s battery from being
drained if you leave your amplifier on
when you turn off the ignition.
6. Use a screwdriver to connect the spade
end of the supplied red power cable
(with in-line fuse holder) to the ampli-
+ 12V
fier’s
terminal.
7. Connect the other end of the red power
cable to your vehicle’s positive (+) battery terminal. Then tighten the terminal.
Caution:
Due to the amplifier’s high current requirement, you must connect the
red power cable’s fused end directly to
the vehicle’s positive (+) battery terminal
or damage to your vehicle’s wiring could
result.
Do not reconnect your vehicle’s negative (–)
battery cable yet.
Preparation
7
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ˆ
Connecting Inputs
LOW-LEVEL INPUTS
You can connect your auto sound system’s
low-level line out jacks to the amplifier’s lowlevel line in jacks.
If your auto sound system does not have
low-level line out jacks, see “High-Level
If your auto sound system has four separate line out jacks
2.
to the amplifier.
(Speaker Wire) Inputs” on Page 9 to connect
your amplifier.
Note:
dio cables (not supplied) available at your local RadioShack store.
1. Temporarily place the amplifier as close
CH 3
CH 4
For the best results, use shielded au-
as possible to the selected mounting
location.
, connect the auto sound system
CH 2
CH 1
Right Rear
Auto Sound System
Left Rear
8
Connecting Inputs
Right Front
Left Front
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If your auto sound system has two line out jacks (left and right)
, connect the auto sound
system to the amplifier.
CH 3
CH 4
Left
Auto Sound System
Note:
For the best results, use shielded audio Y-adapters (not supplied) available at your local
CH 2
CH 1
Right
RadioShack store.
HIGH-LEVEL (SPEAKER
WIRE) INPUTS
If your auto sound system does not have
low-level line out jacks but has only speaker
outputs, connect your auto sound system’s
speaker outputs to the amplifier’s
PUT
jacks.
• If your auto sound system has four
speaker outputs, see “Four Speaker
Outputs” on Page 10 to connect your
system’s speaker outputs to the amplifier using either a floating or common
ground connection.
• If your auto sound system has two
speaker outputs, see “Two Speaker Outputs” on Page 11 to connect your system’s speaker outputs to the amplifier
HIGH IN-
Connecting Inputs
using either a floating or common
ground connection.
Note:
A floating ground connection lets the
amplifier provide more power to each speaker, but requires that you connect a separate
wire to each speaker terminal. A common
ground connection lets you use fewer wires
to connect the speakers to the amplifier, but
reduces the amount of power supplied to the
speakers from the amplifier.
Use the supplied wire harnesses and the
supplied twist-on terminal connectors to
make the appropriate connections.
9
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Four Speaker Outputs
Floating Ground Connection
Violet/Black Green/Black
Violet
Right Rear +
Speaker
Right Rear–
Speaker
Left Rear –
Common Ground Connection
Violet/Black Green/Black
Green
Speaker
Left Rear +
Speaker
Auto Sound System
Gray/Black
Gray
Right Front +
Speaker
Gray/Black
Right Front–
Speaker
White/Black
White
Left Front +
Left Front –
Speaker
White/Black
Speaker
10
Violet
Right Rear +
Speaker
Common
Green
Left Rear +
Speaker
Auto Sound System
Gray
Right Front +
Speaker
Common
White
Left Front +
Speaker
Connecting Inputs
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Two Speaker Outputs
Floating Ground Connection
Violet/Black
Violet
Right +
Speaker
Right –
Speaker
Green/Black
Left –
Common Ground Connection
Violet/Black
Violet
Green/Black
Green
Speaker
Left +
Speaker
Auto Sound System
Green
y
a
r
G
Gray/
Black
White/
Black
White
y
a
r
G
Gray/
Black
White/
Black
White
Right +
Speaker
Common
Left +
Speaker
Auto Sound System
Connecting Inputs
11
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CONNECTING SPEAKERS
You can connect four speakers, two speakers and a subwoofer, or just two speakers to
the amplifier and your auto sound system.
Important:
tions, make sure both
the left and right sides of the amplifier) are
set to ST.
Preparing the Speaker Wires
Caution:
to each speaker terminal as described in the
following procedures. Only use a common
ground wire or chassis ground if your auto
sound system is wired for it.
Notes:
• Use 16- or 18-gauge marked or colorcoded wires to help you correctly connect the speakers to your amplifier.
• Color-coded wires have a stripe running
down one of the conductors or different
colored insulation for each conductor.
Your local RadioShack store has a wid e
selection of speaker wire.
Before you make the connec-
BRG/ST
switches (on
You must connect a separate wire
3. Strip the insulation from the ends of
1
each conductor to expose
/4 inch of
wire. Twist the ends to secure loose
strands.
Conductors
1
/4 Inch
4 Inches
• For the maximum bass response and
the best overall performance, keep your
speakers properly phased (connect + to
+ and – to –).
1. With the speakers placed in their
approximate locations, run one wire
from each speaker to the amplifier.
If you are connecting a subwoofer, run
two wires from each of the subwoofer’s
terminals to the amplifier.
2. Separate each wire’s two conductors at
both ends for a length of about 4 inches.
12
Connecting Inputs
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Connecting Four Speakers
CH1 Front
Left Speaker
1. Use a screwdriver to connect the front
left speaker’s positive (+) wire to the
amplifier’s
CH1 (+)
terminal.
CH2 Front
Right Speaker
CH3 Rear
Left Speaker
(–) wires to the amplifier’s
CH2 (–)
terminals.
4. Repeat Steps 1–3 to connect the rear
2. Use a screwdriver to connect the front
left speaker’s negative (–) wire to the
amplifier’s
CH1 (–)
terminal.
left and rear right speaker’s positive (+)
and negative (–) wires to the amplifier ’s
CH3 (+), CH3 (–), CH4 (+),
minals.
3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
Connecting Two Speakers (Unbridged Connection)
Left Speaker
CH4 Rear
Right Speaker
Right Speaker
and
CH2 (+)
CH4 (–)
and
ter-
This connection produces 100 watts per
channel. Use this connection if you do not
have high-power speakers.
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the amplifier’s
CH3 (+)
terminal.
Connecting Inputs
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the ampli-
CH3 (–)
fier’s
terminal.
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
wires to the amplifier’s
(–)
terminals.
CH4 (+)
and
CH4
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Connecting Two Speakers (Bridged Connection)
Left Speaker
Caution:
This connection produces 200
watts per channel. Use this connection only if
you have high-power speakers that can han-
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the ampli-
CH2 (+)
fier’s
Right Speaker
terminal.
dle a power output of 200 watts.
3. Repeat Steps 1–2 to connect the right
Note:
CH2 (+)
tive (–) terminals for a bridged connection.
and
CH4 (+)
are used as nega-
speaker’s positive (+) and negative (–)
wires to the amplifier’s
(+)
terminals.
CH3 (+)
and
CH4
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the ampli-
CH1 (+)
fier’s
terminal.
4. Set both
BRG/ST
and right sides of the amplifier) to
switches (on the left
BRG
Connecting Two Speakers and One Subwoofer (Unbridged Connection)
Or
CH1 Front
Left Speaker
CH2 Front
Right Speaker
CH3 Rear
Subwoofer
CH4 Rear
Subwoofer
.
1. Use a screwdriver to connect the front
left speaker’s positive (+) wire to the
amplifier’s
CH1 (+)
terminal.
2. Use a screwdriver to connect the front
left speaker’s negative (–) wire to the
CH1 (–)
amplifier’s
14
terminal.
Connecting Inputs
3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
(–) wires to the amplifier’s
CH2 (–)
terminals.
CH2 (+)
and
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4. Use a screwdriver to connect the subwoofer’s positive (+) wire to the amplifier’s
CH3 (+)
or
CH4 (+)
terminal.
5. Repeat Step 4 to connect the subwoofer’s negative (–) wire to the ampli-
channel you connected in Step 4. For
example, if you connected the subwoofer’s positive (+) wire to the amplifier’s
CH3 (+)
terminal, connect the
subwoofer’s negative (–) wire to the
CH3 (–)
amplifier’s
terminal.
fier’s negative (–) terminal for the same
Connecting Two Unbridged Speakers and One Bridged Subwoofer
CH1 Front
Left Speaker
Note:
CH4 (+)
is used as a negative (–) termi-
nal for a bridged connection.
1. Use a screwdriver to connect the left
front speaker’s positive (+) wire to the
amplifier’s
CH1 (+)
terminal.
CH2 Front
Right Speaker
Subwoofer
6. Make sure the
right
side of the amplifier is set to ST,
then set the
BRG/ST
side of the amplifier to
BRG/ST
switch on the
switch on the
BRG
.
left
2. Use a screwdriver to connect the left
front speaker’s negative (–) wire to the
CH1 (–)
amplifier’s
terminal.
3. Repeat Steps 1–2 to connect the right
front speaker’s positive (+) and negative
(–) wires to the amplifier’s
CH2 (–)
terminals.
CH2 (+)
and
4. Use a screwdriver to connect the subwoofer’s positive (+) wire to the amplifier’s
CH3 (+)
terminal.
5. Repeat Step 4 to connect the subwoofer’s negative (–) wire to the amplifier’s
CH4 (+)
terminal.
Connecting Inputs
15
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ˆ
Completing the Installation
TESTING THE
CONNECTIONS
Before you continue, make sure you have
securely made all connections. Then reconnect the cable to the vehicle’s negative (
battery terminal.
LEVEL (MIN/MAX)
Set
sides of the amplifier to its mid position (see
“Adjusting the Audio Level” on Page 18).
Then turn on your vehicle’s ignition and auto
sound system to confirm that the amplifier
on the left and right
MOUNTING THE AMPLIFIER
Sheet Metal Screw
Lock Washer
Flat Washer
and auto sound system operate properly.
The amplifier turns on after a few seconds.
If you cannot quickly confirm whether the
auto sound system and amplifier are working
properly,
–
)
and disconnect the cable from your vehicle’s negative (–) battery terminal.
recheck your connections.
After you test the auto sound system and
amplifier and verify that everything is properly connected and working, follow the instructions in “Mounting the Amplifier.”
turn off your vehicle’s ignition
Then
9
/64-Inch
Mounting
Hole
Once you verify that the amplifier is connected properly, follow these steps to mount it.
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
2. To make mounting more convenient,
temporarily disconnect the amplifier’s
connections (ground, primary power,
remote power, your auto sound system’s
input, and speakers).
16
Completing the Installation
Chassis
or Car Mat
Note:
If you have not already done so,
be sure to mark each wire with the name
of the terminal you will reconnect it to.
3. Using the mounting holes on the amplifier as a guide, mark the positions for the
mounting holes.
9
4. Drill
/64-inch (3.57 mm) holes at the
marked locations, being careful not to
damage anything behind the mounting
surface.
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5. Secure the amplifier to the mounting
surface using the supplied sheet metal
screws and washers.
6. Reconnect the wiring.
7. Reconnect the cable to the vehicle battery’s negative (–) terminal.
8. Reset your vehicle’s clock, your auto
sound system’s tuner memory, and
other timer/memory devices.
Completing the Installation
17
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ˆ
Operation
TURNING ON THE
AMPLIFIER
The amplifier automatically turns on a few
seconds after you turn your vehicle’s ignition
switch to ACC or ON or turn on your auto
sound system, depending on how you wired
the system. The POWER indicator on the
side of the amplifier lights when the amplifier
is on.
Important:
or more of power from your vehicle’s battery
during operation. To protect your battery
from discharging, do not operate the amplifier unless your vehicle is running.
Note:
if it gets too hot, then restarts automatically
once it cools.
Your amplifier requires 60 amps
Your amplifier temporarily shuts down
ADJUSTING THE AUDIO
LEVEL
For the best performance, you must set
EL (MIN/MAX)
amplifier to adjust the level of the audio signals that enter the amplifier.
on the left and right sides of the
LEV-
1. Use a screwdriver to turn
MAX)
on the left and right sides of the
amplifier fully counterclockwise to
2. Turn the auto sound system’s volume
control to about one-third of its full
range.
3. On the left and right sides of the amplifier, adjust
fortable listening level.
4. Turn up the auto sound system’s volume
control until the sound begins to distort.
Then immediately turn the volume down
to a point just before where the distortion began.
Caution:
system’s volume control more than
needed to adjust the audio level, or
more than two-thirds of its maximum volume.
5. On the left and right sides of the amplifier, adjust
sound is at the maximum level you want
the amplifier to produce.
6. Adjust the auto sound system’s volume
control to a comfortable listening level.
LEVEL (MIN/MAX)
Never turn up the auto sound
LEVEL (MIN/MAX)
LEVEL (MIN/
MIN
.
to a com-
until the
18
Operation
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ADJUSTING FREQUENCY
CROSSOVER
If you installed a subwoofer using the steps
in “Connecting Two Speakers and One Subwoofer (Unbridged Connection)” on Page 14
or “Connecting Two Unbridged Speakers
and One Bridged Subwoofer” on Page 15,
X-OVER FREQ ON/OFF
set
X-OVER FREQ
The amplifier passes through all frequencies
at or below that setting (45−400 Hz).
for your vehicle’s acoustics.
to ON, then adjust
Note:
X-OVER FREQ
the amplifier will pass frequencies (from 45
400 Hz). You should not use it to adjust the
sound you hear through your main speakers.
selects the limit at which
Operation
−
19
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ˆ
Troubleshooting
We do not expect you to have any problems with your RadioShack High Power 4/3/2-Channel
Bridgeable Amplifier, but if you do have a problem, this chart might help. If not, take th e a mplifier to your local RadioShack store for assistance.
Symptom Possible Cause Suggestion
No power
POWER
after the vehicle’s auto sound
system is turned on
No sound Auto sound system not turned
Distorted sound The amplifier might be receiving
—
the amplifier’s
indicator does not light
Power problem. Check the amplifier’s and auto
Vehicle’s ignition not turned on. Start the vehicle.
Amplifier not connected to auto
sound system/vehicle correctly.
on or volume set to minimum.
LEVEL (MIN/MAX)
Amplifier’s
controls set to minimum.
Amplifier not connected to auto
sound system/vehicle correctly.
The amplifier might have shut
down.
Power problem. Check the amplifier’s and auto
too much input power from your
auto sound system.
An output channel might have
shorted.
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” “Replacing
a Fuse” on Page 21).
Check all connections.
Turn the auto sound system on
or adjust its volume.
LEVEL (MIN/MAX)
Adjust
Check all connections.
Turn your auto sound system off
and let the amplifier cool. Make
sure the amplifier is properly
ventilated. Then turn your auto
sound system back on. The
amplifier turns itself back on
when it is cooled.
The amplifier detected an input
overload. Reduce the auto
sound system’s volume.
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” on
Page 21).
Reduce your auto sound system’s output power (if possible), or reduce the auto sound
system’s volume.
Take the amplifier to your local
RadioShack store.
.
20
Troubleshooting
12-2018.fm Page 21 Friday, May 12, 2000 12:46 PM
Symptom Possible Cause Suggestion
Distorted sound (continued) The amplifier might have shut
down.
Turn your auto sound system off
and let the amplifier cool. Make
sure the amplifier is properly
ventilated. Then turn your auto
sound system back on. The
amplifier turns itself back on
when it is cooled.
CARE
To enjoy your amplifier for a long time:
• Keep the amplifier dry. If it gets wet,
wipe it dry immediately.
• Use and store the amplifier only in normal temperature environments.
• Handle the amplifier gently and carefully. Do not drop it.
• Keep the amplifier away from dust and
dirt.
• Wipe the amplifier with a damp cloth
occasionally to keep it looking new.
Modifying or tampering with the amplifier’s
internal components can cause a malfunction and might invalidate its warranty and
void your FCC authorization to operate it. If
your amplifier is not performing as it should,
take it to your local RadioShack store for assistance.
REPLACING A FUSE
If the amplifier does not operate, you might
need to replace the red power cable’s 60amp SFE-type fuse or one or both of the 30amp blade-type fuses on the amplifier’s back
panel. Check all fuses.
Caution:
Do not use a fuse with ratings other
than those specified. Doing so might damage
your amplifier.
Replacing the SFE-Type Fuse
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
2. Push together and twist the fuse
holder’s parts on the red power cable
until they spring apart. Then remove the
fuse.
Fuse
3. If the fuse is blown, replace it. Use only
an SFE-type fuse with the proper rating
(available at many automotive supply
stores). The fuse must be 60 amps.
4. Reassemble the fuse holder by inserting
the fuse into the longer of the fuse
holder’s ends, and pushing together and
twisting the two parts until they latch
together.
5. Reconnect the cable to the vehicle’s
negative (–) battery terminal.
Important:
Let the amplifier cool down and
see if it starts again before you assume a
fuse needs to be replaced.
Troubleshooting
Replacing the Blade-Type Fuses
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
21
12-2018.fm Page 22 Friday, May 12, 2000 12:46 PM
2. For each fuse, grasp its plastic end and
pull it out of the back of the amplifier.
3. If the fuse is blown, replace it. Use only
a blade-type fuse with the proper rating.
The fuse must be 30 amps.
4. Grasp the fuse’s plastic end and push it
in.
5. Reconnect the cable to the vehicle’s
negative (–) battery terminal.
22
Troubleshooting
12-2018.fm Page 23 Friday, May 12, 2000 12:46 PM
ˆ
Specifications
Output Power:
Stereo ....................................................................... 65 Watts × 4 @ 4 Ohms, 20–20 kHz, 0.5% THD
100 Watts × 4 @ 4 Ohms, 20–20 kHz, 10% THD
75 Watts × 4 @ 2 Ohms, 20–20 kHz, 0.5% THD
80 Watts × 4 @ 2 Ohms, 20–20 kHz, 1% THD
Bridged .................................................................................. 200 Watts @ 4 Ohms, 1 kHz, 10% THD
Frequency Response ................................................................................................ 20–20,000 Hz (±3 dB)
Power Supply Voltage ......................................................................................... 12V DC Negative Ground
Maximum Current Draw ........................................................................................................................ 60 A
Dimensions (HWD) ...................................................................................................... 2
Net Weight ........................................................................................................................................... 12 lbs
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
5
/8 × 13 × 17 Inches
(6.6 × 33 × 43.2 cm)
(5.4 kg)
Specifications
23
12-2018.fm Page 24 Friday, May 12, 2000 12:46 PM
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year from the date of purchase from Radi oSha ck company- owned
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING
THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED
IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED
HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT T O ANY
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limit ation of incidental or consequential damages, so the above limitations or exclusions may not apply to
you.
In the event of a product defect during the warranty period, take the product and the RadioShack
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a) correct the defect by product repair without charge for parts and
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase
price. All replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in the performance of
warranty service. Repaired or replaced parts and products are warranted for the remainder of the
original warranty period. You will be charged for repair or replacement of the product made after the
expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs
of product removal, installation, set-up service adjustment or reinstallat i on.
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
We Service What We Sell
12/99
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
12-2018
05A00
Printed in China
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