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XL-400 High Power
4/3/2-Channel Bridgeable
Amplifier
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ˆ Features
Your RadioShack High Power 4/3/2-Chan-
nel Bridgeable Amplifier produces a total of
400 watts to give added punch and power to
your vehicle’s existing auto sound system.
Power Indicator
supplied to the amplifier.
— lights when power is
Protection Indicator
shuts itself down.
— lights if the amplifier
The amplifier produces up to 200 watts per
channel (if bridged) of clean, powerful sound
at all audio frequencies with minimum distor-
tion. You can connect your auto sound sys-
tem’s low-level or speaker-level outputs to
this amplifier.
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 am-
plifier’s sound if any output channel shorts,
alerting you to turn off the auto sound sys-
tem.
Its features include:
14K Gold-Plated Noise-Isolated Low-Lev-
el Input Jacks
— let you connect low-level
Auto-Off
— temporarily shuts down the am-
(preamplifier) signal inputs to match your
auto sound system’s output for the best high-
fidelity performance.
plifier to protect the amplifier from overheat-
ing or input overloads. The amplifier restarts
automatically when it cools or the problem is
corrected.
14K Gold-Plated Speaker Terminals
— de-
signed for low impedance, high conductivity,
and minimum corrosion, to provide the high-
est signal transfer and lowest sound distor-
tion.
THE FCC WANTS YOU TO
KNOW
Your amplifier might cause TV or radio inter-
ference even when it is operating properly.
To determine whether your amplifier is caus-
ing the interference, turn off your amplifier. If
the interference goes away, your amplifier is
causing it. Try to eliminate the interference
by:
Input Level Controls
level of the audio signals that enter the am-
plifier.
— let you adjust the
Automatic Power Switching
— can auto-
matically turn the amplifier on or off when
you turn your auto sound system on or off
(depending on how you hook up the amplifi-
er).
• moving your amplifier away from the
receiver
Bridging Capability
— lets you combine the
• contacting your local RadioShack store
for help
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 chan-
nel.
If you cannot eliminate the interference, the
FCC requires that you stop using your ampli-
fier.
Mute Turn On Circuit
— eliminates the
thump you hear when you turn on some am-
plifiers.
3
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.
Power Wire (Red) (1)
Ground Wire (Black) (1)
Remote Wire (Blue/White) (1)
Flat Washers (4)
Twist-On
Terminal
Connectors (9)
4-Pin Connector with Wire (2)
Sheet Metal Screws (4)
Lock Washers (4)
Also, be aware that installation in your vehi-
cle might require cutting or modifying your
vehicle.
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 ques-
tions about your vehicle’s electrical and auto
sound systems.
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 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.)
• Does not interfere with the vehicle’s
operation
• Lets you drill mounting holes without
damaging other vehicle components
• How do I connect a wire to the fuse box?
• Allows enough space around the cooling
fins for proper airflow and cooling
• Which of the auto sound system’s wires
is the power wire?
• Lets you easily see the amplifier’s
POWER and PROTECTION indicators
• Which of the auto sound system’s termi-
nals are low-level outputs and which are
high-level (speaker) outputs?
4
Preparation
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Warning:
The amplifier gets very hot while it
Then test the connections. When you verify
that everything works as expected, discon-
nect the amplifier, mount it in your vehicle,
and reconnect it.
is on. Do not touch the amplifier or place
flammable objects near it.
Preparing the Mounting Area
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.
Before you mount the amplifier, make sure
you have these materials.
• an adapter harness
• additional wire
Note:
For easier installation, mark each wire
you plan to connect with the name of the ter-
minal you will connect it to.
• shielded audio cables
BEFORE YOU MAKE THE
CONNECTIONS
• 16- or 18-gauge marked or color-coded
wires
The supplied connection cables include all
the lead wires you need to connect the am-
plifier to ground, power, and your existing
auto sound system.
Then confirm that the amplifier fits in your ve-
hicle’s available mounting area. This amplifi-
er 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.
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 ser-
vice if you cut a wire and find the prod-
uct is defective.
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 ca-
bles along the wiring channel beneath the
vehicle’s door facings by carefully removing
the molding that holds the carpet in place. Af-
ter routing the cables and wires, replace the
molding.
• 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.
INSTALLATION ORDER
You might need additional wire, depending
on your individual auto sound system, to
complete the connections. Your local Ra-
dioShack store carries a full line of wire and
wire management accessories.
For trouble-free installation, simply follow the
sections in this owner’s manual in order. First
make all the connections by temporarily con-
necting the amplifier to:
1
2
3
Ground and power
Your auto sound system’s outputs
Your speakers
5
Preparation
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Cautions:
100 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.
• For added safety and to protect your
amplifier and auto sound system, dis-
connect 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
and bridge the amplifier’s outputs, or
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.
CONNECTING GROUND AND SWITCHED/PRIMARY POWER
Fuse
Holder
Red
Black
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.
insulated from the chassis by a plastic
part.
1. If you have not done so already, discon-
nect the cable from your vehicle’s nega-
tive (–) battery terminal.
4. Use a screwdriver to connect the spade
end of the supplied blue/white wire to
REM
the amplifier’s
minal.
(remote power) ter-
2. Use a screwdriver to connect the spade
end of the supplied black ground wire to
5. If your auto sound system has
a
GND
switched power lead
, connect the blue/
the amplifier’s
(ground) terminal.
white wire’s other end to your auto
sound system’s switched power lead
using one of the supplied twist-on termi-
nal connectors.
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
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This connection turns on the amplifier
when you turn on the auto sound sys-
tem, 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 pre-
vents 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 (+) bat-
tery terminal. Then tighten the terminal.
Caution:
Due to the amplifier’s high cur-
rent 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.
7
Preparation
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ˆ Connecting Inputs
(Speaker Wire) Inputs” on Page 9 to connect
your amplifier.
LOW-LEVEL INPUTS
You can connect your auto sound system’s
low-level line out jacks to the amplifier’s low-
level line in jacks.
Note:
For the best results, use shielded au-
dio cables (not supplied) available at your lo-
cal RadioShack store.
If your auto sound system does not have
low-level line out jacks, see “High-Level
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.
Right Front
Right Rear
Auto Sound System
Left Rear
Left Front
8
Connecting Inputs
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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.
Left
Right
Auto Sound System
Note:
For the best results, use shielded audio Y-adapters (not supplied) available at your local
RadioShack store.
using either
ground connection.
a
floating or common
HIGH-LEVEL (SPEAKER
WIRE) INPUTS
Note:
A floating ground connection lets the
If your auto sound system does not have
low-level line out jacks but has only speaker
outputs, connect your auto sound system’s
amplifier provide more power to each speak-
er, 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.
HIGH IN-
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 ampli-
fier using either a floating or common
ground connection.
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 Out-
puts” on Page 11 to connect your sys-
tem’s speaker outputs to the amplifier
9
Connecting Inputs
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Four Speaker Outputs
Floating Ground Connection
Violet/Black
Green/Black
Gray/Black
White/Black
Auto Sound System
Common Ground Connection
Violet/Black
Green/Black
Gray/Black
White/Black
Auto Sound System
10
Connecting Inputs
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Two Speaker Outputs
Floating Ground Connection
Violet/Black
Violet
Green/Black
Green
Auto Sound System
Common Ground Connection
Violet/Black
Green/Black
Green
Auto Sound System
11
Connecting Inputs
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3. Strip the insulation from the ends of
each conductor to expose 1/4 inch of
wire. Twist the ends to secure loose
strands.
CONNECTING SPEAKERS
You can connect four speakers, two speak-
ers and a subwoofer, or just two speakers to
the amplifier and your auto sound system.
Important:
tions, make sure both
Before you make the connec-
Conductors
1/4 Inch
BRG/ST
switches (on
the left and right sides of the amplifier) are
ST
set to
.
4 Inches
Preparing the Speaker Wires
Caution:
You must connect a separate wire
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 color-
coded wires to help you correctly con-
nect 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.
12
Connecting Inputs
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Connecting Four Speakers
CH2 Front
Right Speaker
CH1 Front
Left Speaker
CH3 Rear
Left Speaker
CH4 Rear
Right Speaker
CH2 (+)
and
1. Use a screwdriver to connect the front
left speaker’s positive (+) wire to the
(–) wires to the amplifier’s
CH2 (–)
terminals.
CH1 (+)
amplifier’s
terminal.
4. Repeat Steps 1–3 to connect the rear
left and rear right speaker’s positive (+)
and negative (–) wires to the amplifier’s
2. Use a screwdriver to connect the front
left speaker’s negative (–) wire to the
CH1 (–)
CH3 (+) CH3 (–) CH4 (+)
CH4 (–)
, and ter-
amplifier’s
terminal.
,
,
minals.
3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
Connecting Two Speakers (Unbridged Connection)
Left Speaker
Right Speaker
This connection produces 100 watts per
channel. Use this connection if you do not
have high-power speakers.
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the ampli-
CH3 (–)
fier’s
terminal.
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the ampli-
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
CH3 (+)
CH4 (+) CH4
and
fier’s
terminal.
wires to the amplifier’s
(–)
terminals.
13
Connecting Inputs
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Connecting Two Speakers (Bridged Connection)
Left Speaker
Right Speaker
Caution:
This connection produces 200
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the ampli-
watts per channel. Use this connection only if
you have high-power speakers that can han-
dle a power output of 200 watts.
CH2 (+)
fier’s
terminal.
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
Note: CH2 (+)
CH4 (+)
are used as nega-
and
CH3 (+) CH4
and
tive (–) terminals for a bridged connection.
wires to the amplifier’s
(+)
terminals.
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the ampli-
BRG/ST
4. Set both
switches (on the left
CH1 (+)
BRG
.
fier’s
terminal.
and right sides of the amplifier) to
Connecting Two Speakers and One Subwoofer (Unbridged Connection)
Or
CH1 Front
CH2 Front
CH3 Rear
CH4 Rear
Left Speaker
Right Speaker
Subwoofer
Subwoofer
1. Use a screwdriver to connect the front
left speaker’s positive (+) wire to the
3. Repeat Steps 1–2 to connect the front
right speaker’s positive (+) and negative
CH1 (+)
CH2 (+)
and
amplifier’s
terminal.
(–) wires to the amplifier’s
CH2 (–)
terminals.
2. Use a screwdriver to connect the front
left speaker’s negative (–) wire to the
CH1 (–)
amplifier’s
terminal.
14
Connecting Inputs
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4. Use a screwdriver to connect the sub-
woofer’s positive (+) wire to the ampli-
channel you connected in Step 4. For
example, if you connected the sub-
woofer’s positive (+) wire to the ampli-
CH3 (+) or CH4 (+)
fier’s
terminal.
CH3 (+)
fier’s
terminal, connect the
5. Repeat Step 4 to connect the sub-
woofer’s negative (–) wire to the ampli-
fier’s negative (–) terminal for the same
subwoofer’s negative (–) wire to the
CH3 (–)
amplifier’s
terminal.
Connecting Two Unbridged Speakers and One Bridged Subwoofer
CH1 Front
Left Speaker
CH2 Front
Right Speaker
Subwoofer
Note: CH4 (+)
BRG/ST
switch on the
is used as a negative (–) termi-
6. Make sure the
nal for a bridged connection.
right side of the amplifier is set to
ST
,
BRG/ST
then set the
switch on the
left
1. Use a screwdriver to connect the left
front speaker’s positive (+) wire to the
BRG
side of the amplifier to
.
CH1 (+)
amplifier’s
terminal.
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
CH2 (+)
(–) wires to the amplifier’s
and
CH2 (–)
terminals.
4. Use a screwdriver to connect the sub-
woofer’s positive (+) wire to the ampli-
CH3 (+)
fier’s
terminal.
5. Repeat Step 4 to connect the sub-
woofer’s negative (–) wire to the ampli-
CH4 (+)
fier’s
terminal.
15
Connecting Inputs
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ˆ Completing the Installation
and auto sound system operate properly.
The amplifier turns on after a few seconds.
TESTING THE
CONNECTIONS
If you cannot quickly confirm whether the
auto sound system and amplifier are working
Before you continue, make sure you have
securely made all connections. Then recon-
turn off your vehicle’s ignition
properly,
–
nect the cable to the vehicle’s negative ( )
and disconnect the cable from your vehi-
battery terminal.
cle’s negative (–) battery terminal.
Then
recheck your connections.
LEVEL (MIN/MAX)
Set
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 proper-
ly connected and working, follow the instruc-
tions in “Mounting the Amplifier.”
MOUNTING THE AMPLIFIER
Sheet Metal Screw
Lock Washer
Flat Washer
9/64-Inch
Mounting
Hole
Chassis
or Car Mat
Note:
Once you verify that the amplifier is connect-
ed properly, follow these steps to mount it.
If you have not already done so,
be sure to mark each wire with the name
of the terminal you will reconnect it to.
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
3. Using the mounting holes on the ampli-
fier as a guide, mark the positions for the
mounting holes.
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).
4. Drill 9/64-inch (3.57 mm) holes at the
marked locations, being careful not to
damage anything behind the mounting
surface.
16
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 bat-
tery’s negative (–) terminal.
8. Reset your vehicle’s clock, your auto
sound system’s tuner memory, and
other timer/memory devices.
17
Completing the Installation
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ˆ Operation
LEVEL (MIN/
1. Use a screwdriver to turn
TURNING ON THE
AMPLIFIER
MAX)
on the left and right sides of the
MIN
amplifier fully counterclockwise to
.
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 ampli-
LEVEL (MIN/MAX)
fier, adjust
to a com-
fortable listening level.
Important:
Your amplifier requires 60 amps
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 distor-
tion began.
or more of power from your vehicle’s battery
during operation. To protect your battery
from discharging, do not operate the amplifi-
er unless your vehicle is running.
Note:
Your amplifier temporarily shuts down
Caution:
Never turn up the auto sound
if it gets too hot, then restarts automatically
once it cools.
system’s volume control more than
needed to adjust the audio level, or
more than two-thirds of its maximum vol-
ume.
ADJUSTING THE AUDIO
LEVEL
5. On the left and right sides of the ampli-
LEV-
For the best performance, you must set
EL (MIN/MAX)
LEVEL (MIN/MAX)
fier, adjust
sound is at the maximum level you want
the amplifier to produce.
until the
on the left and right sides of the
amplifier to adjust the level of the audio sig-
nals that enter the amplifier.
6. Adjust the auto sound system’s volume
control to a comfortable listening level.
18
Operation
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ADJUSTING FREQUENCY
CROSSOVER
If you installed a subwoofer using the steps
in “Connecting Two Speakers and One Sub-
woofer (Unbridged Connection)” on Page 14
or “Connecting Two Unbridged Speakers
and One Bridged Subwoofer” on Page 15,
X-OVER FREQ ON/OFF
ON
, then adjust
set
to
X-OVER FREQ
for your 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.
19
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 ampli-
fier to your local RadioShack store for assistance.
Symptom
Possible Cause
Power problem.
Suggestion
No power — the amplifier’s
Check the amplifier’s and auto
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” “Replacing
a Fuse” on Page 21).
POWER
indicator does not light
after the vehicle’s auto sound
system is turned on
Vehicle’s ignition not turned on. Start the vehicle.
Amplifier not connected to auto Check all connections.
sound system/vehicle correctly.
No sound
Auto sound system not turned
on or volume set to minimum.
Turn the auto sound system on
or adjust its volume.
LEVEL (MIN/MAX)
controls set to minimum.
LEVEL (MIN/MAX)
.
Amplifier’s
Adjust
Amplifier not connected to auto Check all connections.
sound system/vehicle correctly.
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.
Power problem.
Check the amplifier’s and auto
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” on
Page 21).
Distorted sound
The amplifier might be receiving Reduce your auto sound sys-
too much input power from your tem’s output power (if possi-
auto sound system.
ble), or reduce the auto sound
system’s volume.
An output channel might have
shorted.
Take the amplifier to your local
RadioShack store.
20
Troubleshooting
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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.
Caution:
Do not use a fuse with ratings other
CARE
than those specified. Doing so might damage
your amplifier.
To enjoy your amplifier for a long time:
• Keep the amplifier dry. If it gets wet,
wipe it dry immediately.
Replacing the SFE-Type Fuse
• Use and store the amplifier only in nor-
mal temperature environments.
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
• Handle the amplifier gently and care-
fully. Do not drop it.
2. Push together and twist the fuse
holder’s parts on the red power cable
until they spring apart. Then remove the
fuse.
• 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 malfunc-
tion 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 as-
sistance.
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.
REPLACING A FUSE
If the amplifier does not operate, you might
need to replace the red power cable’s 60-
amp SFE-type fuse or one or both of the 30-
amp blade-type fuses on the amplifier’s back
panel. Check all fuses.
5. Reconnect the cable to the vehicle’s
negative (–) battery terminal.
Important:
Let the amplifier cool down and
Replacing the Blade-Type Fuses
see if it starts again before you assume a
fuse needs to be replaced.
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
21
Troubleshooting
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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
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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) ...................................................................................................... 25/8 × 13 × 17 Inches
(6.6 × 33 × 43.2 cm)
Net Weight ........................................................................................................................................... 12 lbs
(5.4 kg)
Specifications are typical; individual units might vary. Specifications are subject to change and improve-
ment without notice.
23
Specifications
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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 workman-
ship 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, Ra-
dioShack 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 RE-
SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-
CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-
TAL, 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 limita-
tion 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, un-
less 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 prop-
erty 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
12/99
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
12-2018
05A00
Printed in China
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