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Please read before using this equipment.
Owner’s Manual
XL-260 High Power
4/3/2-Channel Bridgeable
Amplifier
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ˆ Contents
Features .................................................................................................................................. 3
Preparation .............................................................................................................................
Supplied Hardware ............................................................................................................
Choosing a Mounting Location ..................................................................................
Preparing the Mounting Area .....................................................................................
Routing Cables and Wires .........................................................................................
Installation Order ...............................................................................................................
Before You Make the Connections ...................................................................................
Connecting Ground and Switched/Primary Power ............................................................
4
4
4
5
5
5
5
7
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 ..............................................................................................................................
Turning On the Amplifier .................................................................................................
Adjusting the Audio Level ................................................................................................
Adjusting Frequency Crossover ......................................................................................
18
18
18
19
Troubleshooting ...................................................................................................................
Care ................................................................................................................................
Replacing a Fuse ............................................................................................................
Replacing the SFE-Type Fuse .................................................................................
Replacing the Blade-Type Fuses .............................................................................
20
22
22
22
22
Specifications ....................................................................................................................... 23
© 2000 Tandy Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks used by Tandy Corporation.
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ˆ Features
Your RadioShack High Power 4/3/2-Channel Bridgeable Amplifier produces a total of
260 watts to give added punch and power to
your vehicle’s existing auto sound system.
The amplifier produces up to 130 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 — let you connect low-level
(preamplifier) signal inputs to match your
auto sound system’s output for the best highfidelity performance.
14K Gold-Plated Speaker Terminals — designed for low impedance, high conductivity,
and minimum corrosion, to provide the highest signal transfer and lowest sound distortion.
Input Level Controls — let you adjust the
level of the audio signals that enter the amplifier.
Automatic Power Switching — can automatically 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 — lets you combine the
amplifier’s four 65-watt channels so you can
use the amplifier with only two channels that
produce a total of 130 watts from each channel.
Mute Turn On Circuit — eliminates the
thump you hear when you turn on some amplifiers.
Power Indicator — lights when power is
supplied to the amplifier.
Protection Indicator — lights if the amplifier
shuts itself down.
Crossover Frequency Circuit — lets you
adjust the crossover frequency from 45–400
Hz. This lets you set up the amplifier so you
can connect a subwoofer.
Short Circuit Protection — distorts the amplifier’s sound if any output channel shorts,
alerting you to turn off the auto sound system.
Auto-Off — temporarily shuts down the amplifier to protect the amplifier from overheating or input overloads. The amplifier restarts
automatically when it cools or the problem is
corrected.
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
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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.
FUSE 40A
Power Wire (Red) (1)
Ground Wire (Black) (1)
Remote Wire (Blue/White) (1)
Flat Washers (4)
4-Pin Connector with Wire (2)
Sheet Metal Screws (4)
Twist-On
Terminal
Connectors (9)
Lock Washers (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 these questions about your vehicle’s electrical and auto
sound systems.
Also, be aware that installation in your vehicle might require cutting or modifying your
vehicle.
• 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.)
A good location for mounting the amplifier is
in your vehicle’s trunk. Wherever you decide
to mount it, choose a mounting location that:
• 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?
4
Choosing a Mounting Location
• Does not interfere with the vehicle’s
operation
• Lets you drill mounting holes without
damaging other vehicle components
• Allows enough space around the cooling
fins for proper airflow and cooling
• Lets you easily see the amplifier’s
POWER and PROTECTION indicators
Preparation
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Warning: The amplifier gets very hot while it
is on. Do not touch the amplifier or place
flammable objects near it.
Preparing the Mounting Area
Before you mount the amplifier, make sure
you have these materials.
• an adapter harness
Then test the connections. When you verify
that everything works as expected, disconnect the amplifier, mount it in your vehicle,
and reconnect it.
Caution: If you do not make the connections
in the order shown, damage to the amplifier
and your auto sound system is possible if
any wire connections are made incorrectly.
Note: For easier installation, mark each wire
you plan to connect with the name of the terminal you will connect it to.
• 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 amplifier requires a 51/2-inch high by 131/2-inch
wide by 171/2-inch deep (13.9 × 34.3 × 43.1
cm) mounting area with adequate ventilation
space.
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
2
Your auto sound system’s outputs
3
Your speakers
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,
RadioShack will provide warranty service 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.
Preparation
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Cautions:
• 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 260 watts of power (130 watts
per channel if you connect your auto
sound system to one pair of speakers
and bridge the amplifier’s outputs, or 65
watts per channel if you connect your
auto sound system to two pairs of
speakers or one pair of speakers and a
subwoofer). Each speaker must have an
impedance of at least 4 ohms. Your 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.
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Preparation
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CONNECTING GROUND AND SWITCHED/PRIMARY POWER
Black
Fuse
Holder
Red
Blue/White
AMP Remote Turn On
Vehicle’s Battery
Chassis
Ground
Switched Power Lead
Auto Sound System
Follow these steps to connect the amplifier to
ground, switched power, and primary power.
using one of the supplied twist-on terminal connectors.
1. If you have not done so already, disconnect the cable from your vehicle’s negative (–) battery terminal.
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.
2. Use a screwdriver to connect the spade
end of the supplied black ground wire to
the amplifier’s GND (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
insulated from the chassis by a plastic
part.
4. Use a screwdriver to connect the spade
end of the supplied blue/white wire to
the amplifier’s REM (remote power) terminal.
5. If your auto sound system has a
switched power lead, connect the blue/
white wire’s other end to your auto
sound system’s switched power lead
Preparation
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.
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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.
6. Use a screwdriver to connect the spade
end of the supplied red power cable
(with in-line fuse holder) to the amplifier’s + 12V terminal.
7. Connect the other end of the red power
cable to your vehicle’s positive (+) battery terminal as shown. Then tighten the
terminal.
Do not reconnect your vehicle’s negative (–)
battery cable yet.
ˆ Connecting Inputs
CH 3
CH 4
If your auto sound system does not have
low-level line out jacks, see “High-Level
(Speaker Wire) Inputs” on Page 9 to connect
your amplifier.
1. Temporarily place the amplifier as close
as possible to the selected mounting
location.
2. If your auto sound system has four separate line out jacks, connect the auto
sound system to the amplifier.
CH 2
You can connect your auto sound system’s
low-level line out jacks to the amplifier’s lowlevel line in jacks.
Note: For the best results, use shielded audio cables (not supplied) available at your local RadioShack store.
CH 1
LOW-LEVEL INPUTS
Right Rear
Right Front
Auto Sound System
Left Front
Left Rear
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Connecting Inputs
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CH 2
CH 1
CH 4
CH 3
If your auto sound system has two line out jacks (left and right), connect the auto sound system
to the amplifier.
Left
Right
Auto Sound System
Note: For the best results, use shielded audio Y-adapters (not supplied) available at your local
RadioShack store.
HIGH-LEVEL (SPEAKER
WIRE) INPUTS
using either a floating or common
ground connection.
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 HIGH INPUT 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.
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.
• 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
Connecting Inputs
9
10
Auto Sound System
Connecting Inputs
White
Gray/Black
Left Front +
Speaker
Left Front –
Speaker
White
Gray
Green
Violet
Gray/Black
Left Front +
Speaker
Green/Black
Right Front–
Speaker
Right Front +
Speaker
Left Rear +
Speaker
Left Rear –
Speaker
Right Rear–
Speaker
Right Rear +
Speaker
Green/Black
Common
Gray
Violet/Black
Right Front +
Speaker
Green
Violet
Violet/Black
Left Rear +
Speaker
Common
Right Rear +
Speaker
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Four Speaker Outputs
Floating Ground Connection
White/Black
Auto Sound System
Common Ground Connection
White/Black
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Two Speaker Outputs
Floating Ground Connection
Green/Black
Left –
Speaker
Right –
Speaker
Right +
Speaker
White
Left +
Speaker
Green
Violet
ay
White/
Black
Gr
Gray/
Black
Violet/Black
Auto Sound System
Common Ground Connection
Violet/Black
Green/Black
ay
Gr
White
Gray/
Black
Left +
Speaker
Common
Right +
Speaker
White/
Black
Green
Violet
Auto Sound System
Connecting Inputs
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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.
3. Strip the insulation from the ends of
each conductor to expose 1/4 inch of
wire. Twist the ends to secure loose
strands.
Important: Before you make the connections, make sure both BRG/ST switches (on
the left and right sides of the amplifier) are
set to ST.
Conductors
1/4
4 Inches
Preparing the Speaker Wires
Caution: You must connect a separate wire
to each speaker terminal as described in the
following procedures. Unless your auto
sound system’s speakers use a common
ground wire, do not use a common wire or
chassis ground for speaker connections.
Notes:
• We recommend you use 16- or 18gauge marked or color-coded 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 wide
selection of speaker wire.
• 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.
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Connecting Inputs
Inch
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Connecting Four Speakers
CH1 Front
Left Speaker
CH2 Front
Right Speaker
CH3 Rear
Left Speaker
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
amplifier’s CH1 (–) terminal.
CH4 Rear
Right Speaker
(–) wires to the amplifier’s CH2 (+) and
CH2 (–) terminals.
4. Repeat Steps 1–3 to connect the rear
left and rear right speaker’s positive (+)
and negative (–) wires to the amplifier’s
CH3 (+), CH3 (–), CH4 (+), and CH4 (–) terminals.
3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
Connecting Two Speakers (Unbridged Connection)
Left Speaker
Right Speaker
If you do not have high-power speakers, use
this connection. This connection produces
65 watts per channel.
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the amplifier’s CH3 (–) terminal.
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the amplifier’s CH3 (+) terminal.
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
wires to the amplifier’s CH4 (+) and CH4
(–) terminals.
Connecting Inputs
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Connecting Two Speakers (Bridged Connection)
Right Speaker
Left Speaker
Caution: This connection produces 130
watts per channel. Use this connection only if
you have high-power speakers that can handle a power output of 130 watts.
Note: CH2 (+) and CH4 (+) are used as negative (–) terminals for a bridged connection.
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the amplifier’s CH1 (+) terminal.
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the amplifier’s CH2 (+) terminal.
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
wires to the amplifier’s CH3 (+) and CH4
(+) terminals.
4. Set both BRG/ST switches (on the left
and right sides of the amplifier) to BRG.
Connecting Two Speakers and One Subwoofer (Unbridged Connection)
Or
CH1 Front
Left Speaker
CH2 Front
Right Speaker
1. Use a screwdriver to connect the front
left speaker’s positive (+) wire to the
amplifier’s CH1 (+) terminal.
14
CH3 Rear
Subwoofer
CH4 Rear
Subwoofer
2. Use a screwdriver to connect the front
left speaker’s negative (–) wire to the
amplifier’s CH1 (–) terminal.
Connecting Inputs
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3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
(–) wires to the amplifier’s CH2 (+) and
CH2 (–) terminals.
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 amplifier’s negative (–) terminal for the same
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
amplifier’s CH3 (–) terminal.
Connecting Two Unbridged Speakers and One Bridged Subwoofer
CH1 Front
Left Speaker
CH2 Front
Right Speaker
Subwoofer
Note: CH4 (+) is used as a negative (–) terminal for a bridged connection.
1. Use a screwdriver to connect the left
front speaker’s positive (+) wire to the
amplifier’s CH1 (+) terminal.
2. Use a screwdriver to connect the left
front speaker’s negative (–) wire to the
amplifier’s CH1 (–) terminal.
5. Repeat Step 4 to connect the subwoofer’s negative (–) wire to the amplifier’s CH4 (+) terminal.
6. Make sure the BRG/ST switch on the
right side of the amplifier is set to ST,
then set the BRG/ST switch on the left
side of the amplifier to BRG.
3. Repeat Steps 1–2 to connect the right
front speaker’s positive (+) and negative
(–) wires to the amplifier’s CH2 (+) and
CH2 (–) terminals.
4. Use a screwdriver to connect the subwoofer’s positive (+) wire to the amplifier’s CH3 (+) terminal.
Connecting Inputs
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ˆ Completing the Installation
TESTING THE
CONNECTIONS
and auto sound system operate properly.
The amplifier turns on after a few seconds.
Before you continue, make sure you have
securely made all connections. Then reconnect the cable to the vehicle’s negative (–)
battery terminal.
If you cannot quickly confirm whether the
auto sound system and amplifier are working
properly, turn off your vehicle’s ignition
and disconnect the cable from your vehicle’s negative (–) battery terminal. Then
recheck your connections.
Set LEVEL (MIN/MAX) on the left and right
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
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.”
MOUNTING THE AMPLIFIER
Sheet Metal Screw
Lock Washer
Flat Washer
9/64-Inch
Chassis
or Car Mat
Mounting
Holes
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
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.
4. Drill 9/64-inch (3.57 mm) holes at the
marked locations, being careful not to
damage anything behind the mounting
surface.
Completing the Installation
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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
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ˆ Operation
TURNING ON THE
AMPLIFIER
1. Use a screwdriver to turn LEVEL (MIN/
MAX) on the left and right sides of the
amplifier fully counterclockwise to MIN.
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.
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 LEVEL (MIN/MAX) to a comfortable listening level.
Important: Your amplifier requires 31 amps
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.
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.
Note: Your amplifier temporarily shuts down
if it gets too hot, then restarts automatically
once it cools.
Caution: Never turn up the auto sound
system’s volume control more than
needed to adjust the audio level, or
more than two-thirds of its maximum volume.
ADJUSTING THE AUDIO
LEVEL
For the best performance, you must set
LEVEL (MIN/MAX) on the left and right sides
of the amplifier to adjust the level of the
audio signals that enter the amplifier.
18
5. On the left and right sides of the amplifier, adjust LEVEL (MIN/MAX) until the
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.
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,
set X-OVER FREQ ON/OFF to ON, then adjust
X-OVER FREQ for your particular vehicle’s
acoustics. The amplifier passes through all
frequencies at or below that setting (45−400
Hz).
Note: X-OVER FREQ selects the limit at which
the amplifier will pass frequencies (from 45−
400 Hz). You should not use it to adjust the
sound you hear through your main speakers.
Operation
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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 the amplifier to your local RadioShack store for assistance.
Symptom
No power — the amplifier’s
POWER indicator does not light
after the vehicle’s auto sound
system is turned on
No sound
Possible Cause
Suggestion
Power problem.
Check the amplifier’s and auto
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” on
Page 22).
Vehicle’s ignition not turned on.
Start the vehicle.
Amplifier not connected to auto
sound system/vehicle correctly.
Check all connections.
Auto sound system not turned
on or volume set to minimum.
Turn the auto sound system on
or adjust its volume.
Amplifier’s LEVEL (MIN/MAX)
controls set to minimum.
Adjust LEVEL (MIN/MAX).
Amplifier not connected to auto
sound system/vehicle correctly.
Check all connections.
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.
The amplifier detected an input
overload. Reduce the auto
sound system’s volume.
Distorted sound
20
Power problem.
Check the amplifier’s and auto
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” on
Page 22).
The amplifier might be receiving
too much input power from your
auto sound system.
Reduce your auto sound system’s output power (if possible), or reduce the auto sound
system’s volume.
Troubleshooting
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Symptom
Distorted sound (continued)
The amplifier’s PROTECTION
indicator lights
Possible Cause
Suggestion
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.
An output channel might have
shorted.
Take the amplifier to your local
RadioShack store.
Amplifier not connected to auto
sound system correctly.
Check all connections.
The amplifier might be receiving
too much power from your auto
sound system.
Reduce your auto sound system’s output power (if possible), or reduce the auto sound
system’s volume.
Troubleshooting
21
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CARE
To enjoy your amplifier for a long time:
• Keep the amplifier dry. If it gets wet,
wipe it dry immediately.
2. Push together and twist the fuse
holder’s parts on the red power cable
until they spring apart. Then remove the
fuse.
• 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
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 40 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.
Replacing the Blade-Type Fuses
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
If the amplifier does not operate, you might
need to replace the red power cable’s 40amp SFE-type fuse or one or both of the 20amp blade-type fuses on the amplifier’s back
panel. Check all fuses.
2. For each fuse, grasp its plastic end and
pull it out of the back of the amplifier.
Important: Let the amplifier cool down and
see if it starts again before you assume a
fuse needs to be replaced.
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.
22
3. If the fuse is blown, replace it. Use only
a blade-type fuse with the proper rating.
The fuse must be 20 amps.
4. Grasp the fuse’s plastic end and push it
in.
5. Reconnect the cable to the vehicle’s
negative (–) battery terminal.
Troubleshooting
12-2017.fm Page 23 Tuesday, May 9, 2000 10:02 AM
ˆ Specifications
Output Power:
Stereo ....................................................................... 45 Watts × 4 @ 4 Ohms, 20–20 kHz, 0.5% THD
65 Watts × 4 @ 4 Ohms, 20–20 kHz, 10% THD
60 Watts × 4 @ 2 Ohms, 20–20 kHz, 1% THD
Bridged .................................................................................. 130 Watts @ 4 Ohms, 1 kHz, 10% THD
Frequency Response ................................................................................................ 20–20,000 Hz (±3 dB)
Power Supply Voltage ..................................................................................... 14.4 V DC Negative Ground
Maximum Current Draw ........................................................................................................................ 40 A
5
Dimensions (HWD) .............................................................................................. 2 /8 × 10 1/4 × 14 1/2 Inches
(6.0 × 26 × 37 cm)
Net Weight .......................................................................................................................................... 7.0 lbs
(3.2 kg)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
Specifications
23
12-2017.fm Page 24 Tuesday, May 9, 2000 10:02 AM
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 RadioShack 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 TO 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 limitation 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 reinstallation.
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
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
12/99
12-2017
05A00
Printed in China