RadioShack and RadioShack.com are trademarks used by Tandy Corporation.
2
All Rights Reserved.
12-2013.fm Page 3 Tuesday, May 9, 2000 9:09 AM
ˆ
Features
Your RadioShack High-Power Trunk-Mount
Stereo Amplifier produces a total of 50 watts
to give added punch and power to your vehicle’s existing auto sound system.
The amplifier produces up to 25 watts per
channel of clean, powerful sound at all audio
frequencies with minimum distortion. You
can connect your auto sound system’s lowlevel or speaker-level outputs to this amplifier.
Its features include:
14K Gold-Plated Speaker Terminals
signed for low impedance, high conductivity,
and minimum corrosion, to provide the highest signal transfer and lowest sound distortion.
High- or Low-Level Input Signal-Com patible
— accepts either high-leve l (speak er)
or low-level (pre-amplifier) input signals, to
match your stereo system’s output for the
best performance.
Input Level Control
level of the audio signals that enter the amplifier.
— lets you adjust the
— de-
Auto-Off
plifier to protect the amplifier from overheating, output channel shorts, or input
overloads. The amplifier restarts automatically when it cools or the problem is corrected.
— temporarily shuts down 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
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).
Power Indicator
supplied to the amplifier.
Short Circuit Protection
plifier’s sound if any output channel shorts,
alerting you to turn off the auto sound system.
— lights when power is
— can auto-
— distorts the am-
Features
3
12-2013.fm Page 4 Tuesday, May 9, 2000 9:09 AM
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 (1)
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 (4)
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 indicator
4
Preparation
12-2013.fm Page 5 Tuesday, May 9, 2000 9:09 AM
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
In addition to the supplied hardware, you
need these materials:
• an adapter harness
• additional wire
• shielded audio cables
• 16- or 18-gauge marked or color-coded
wire.
Confirm that the amplifier fits in your vehicle’s available mounting area. This amplifier
requires a 5
6-inch deep (13.9 × 23.5 × 15.3 cm) mounting area.
1
/2-inch high by 93/4-inch wide by
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 temporarily
by connecting the amplifier to:
1
Ground and power
2
Your auto sound system’s outputs
Then test the connections. When you confirm 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 any of the supplied wires. If
you cut any wire, you cannot obtain a
refund or exchange on this product.
will
However, RadioShack
ranty 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. Your local RadioShack
store has 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 has a variety of wire and wire
accessories.
provide war-
3
Your speakers
Preparation
5
12-2013.fm Page 6 Tuesday, May 9, 2000 9:09 AM
Cautions:
channel). Each speaker must have an
impedance of at least 4 ohms. Y our local
• For added safety and to protect your
amplifier and auto sound system, dis-
RadioShack store has a large variety of
speakers.
connect the cable from your vehicle’s
–
negative (
begin.
) battery terminal before you
To make it easier to gauge wire length and
connect the amplifier, temporarily place the
amplifier as close as possible to the selected
• Be sure your speakers can handle as
mounting location.
much as 50 watts of power (25 wat ts pe r
CONNECTING GROUND AND SWITCHED/PRIMARY POWER
Blue/White
AMP Remote Turn On
Black
Vehicle’s Battery
Chassis
Ground
Fuse
Holder
Red
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 nega-
–
) battery terminal.
tive (
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
Auto Sound System
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.
4 Inches
Conductors
1
/4
Inch
12-2013.fm Page 7 Tuesday, May 9, 2000 9:09 AM
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 your auto sound system off.
If your auto sound system does not have
a switched power lead
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
Connecting Inputs
ˆ
, connect the
when you turn your auto sound system
off.
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
7. Connect the other end of the red power
cable to your vehicle’s positive (+) battery terminal as shown. Then tighten the
terminal.
Caution:
rent requirement, you
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.
terminal.
Due to the amplifier’s high cur-
must
connect the
PREPARING THE SPEAKER
WIRES
You can connect two or four speakers to the
amplifier and your auto sound system.
Caution:
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:
You must connect a separate wire
• 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
Connecting Inputs
colored insulation for each conductor.
Your local RadioShack store has a wid e
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.
2. Separate each wire’s two conductors at
both ends for a length of about 4 inches.
3. Strip the insulation from the
ends of each
conductor to
expose
1
4
/
7
12-2013.fm Page 8 Tuesday, May 9, 2000 9:09 AM
inch of wire. Twist the ends to secure
loose strands.
LOW-LEVEL INPUTS
You can connect your auto sound system’s
not
jack.
LOW
have
jack.
low-level line out jacks to the amplifier’s
INPUT
jacks.
If your auto sound system does
low-level line out jacks, see “High-Level
(Speaker Wire) Inputs” to connect your amplifier.
Note:
For the best results, use shielded audio cables (not supplied) available at your local RadioShack store.
1. Temporarily place the amplifier as close
as possible to the selected mounting
location.
2. Connect one end of a shielded audio
cable to the auto sound system’s left line
out jack.
3. Connect the other end of the cable to
the amplifier’s
LOW INPUT LEFT
4. Repeat Steps 2 and 3 to connect the
auto sound system’s right line out jack to
the amplifier’s
LOW INPUT RIGHT
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 two speaker
outputs
, see “Two Speaker Outputs” on
Page 9 to connect your system’s speaker
outputs to the amplifier using either a floating
or common ground connection.
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 only the
rear speakers or two amplifiers to connect
both the front and rear speakers.
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 harness and the supplied twist-on terminal connectors to make
the appropriate connections.
HIGH IN-
Left
8
Right
Auto Sound System
Connecting Inputs
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Two Speaker Outputs
Floating Ground Connection
White/BlackGray/Black
Common Ground Connection
Auto Sound System
Left +
White
Speaker
White
Left –
Speaker
White/
Black
Right –
Speaker
Right +
Gray/
Black
Gray
Speaker
Gray
Auto Sound System
Connecting Inputs
Left +
Speaker
Common
Right +
Speaker
9
12-2013.fm Page 10 Tuesday, May 9, 2000 9:09 AM
Four Speaker Outputs
Rear Speaker Connection
White/BlackGray/Black
Left Front
Speaker
Right Front
Speaker
Front and Rear Speaker Connection
Front
White/BlackGray/Black
White
Auto Sound System
Gray
White
Left +
Speaker
Left –
Speaker
White/BlackGray/Black
White
Right –
Rear
Right +
Speaker
Speaker
Gray
Gray
10
Left Front +
Speaker
Left Front–
Speaker
Right Front –
Speaker
Right Front +
Speaker
Auto Sound System
Connecting Inputs
Left Rear +
Speaker
Left Rear –
Speaker
Right Rear +
Right Rear –
Speaker
Speaker
12-2013.fm Page 11 Tuesday, May 9, 2000 9:09 AM
CONNECTING SPEAKERS
Left Speaker
1. Use a screwdriver to connect the left
speaker’s positive (+) wire to the ampli-
SPEAKER L (+)
fier’s
2. Use a screwdriver to connect the left
speaker’s negative (–) wire to the ampl i-
SPEAKER L (–)
fier’s
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
plifier to its mid position (see “Adjusting the
Audio Level” on Page 13). Then turn on your
vehicle’s ignition and auto sound system to
confirm that the amplifier and auto sound
system operate properly. The amplifier turns
on after a few seconds.
terminal.
terminal.
on the side of the am-
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” on Page 12.
Right Speaker
3. Repeat Steps 1–2 to connect the right
speaker’s positive (+) and negative (–)
wires to the amplifier’s
SPEAKER R (–)
and
turn off your vehicle’s ignition
SPEAKER R (+)
terminals.
Then
Completing the Installation
11
12-2013.fm Page 12 Tuesday, May 9, 2000 9:09 AM
MOUNTING THE AMPLIFIER
Sheet Metal Screw
Lock Washer
Flat Washer
9
/64-Inch 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).
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.
12
Completing the Installation
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.
12-2013.fm Page 13 Tuesday, May 9, 2000 9:09 AM
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
of the amplifier lights when the amplifier is
on.
Important:
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:
Your amplifier temporarily shuts down
if it gets too hot, then restarts automatically
once it cools.
POWER
Your amplifier requires 5 amps or
indicator on the side
POWER
Indicator
ADJUSTING THE AUDIO
LEVEL
1. Use a screwdriver to turn
MAX)
fully counterclockwise to
2. Turn up the auto sound system’s volume
control to about one-third of its full
range.
3. Adjust
4. Turn up the auto sound system’s volume
5. Adjust
LEVEL (MIN/MAX)
able listening level.
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.
is at the maximum level you want the
amplifier to produce.
Never turn up the auto sound
LEVEL (MIN/MAX)
LEVEL (MIN/
MIN
.
to a comfort-
until the sound
For the best performance, you must set
LEVEL (MIN/MAX)
on the amplifier to adjust
the level of the audio signals that enter
the amplifier.
Operation
6. Adjust the auto sound system’s volume
control to a comfortable listening level.
13
12-2013.fm Page 14 Tuesday, May 9, 2000 9:09 AM
ˆ
Troubleshooting
SymptomPossible CauseSuggestion
No power
POWER indicator does not light
after the vehicle’s auto sound
system is turned on
No soundAuto sound system not turned
Distorted soundThe amplifier might be receiving
—
the amplifier’s
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.
The amplifier might have shut
down.
sound system’s fuses and
replace them if necessary (see
“Replacing a Fuse” on
Page 15).
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 15).
Reduce your auto sound system’s output power (if possible), or reduce the auto sound
system’s volume.
Turn off your auto sound system
then turn it back on.
Turn off your auto sound system
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.
.
14
Troubleshooting
12-2013.fm Page 15 Tuesday, May 9, 2000 9:09 AM
ˆ
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 7.5amp SFE-type fuse or the 7.5-amp bladetype fuse on the amplifier’s back panel.
Check both fuses.
Important:
see if it starts again before you assume a
fuse needs to be replaced.
Let the amplifier cool down and
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.
The fuse must be 7.5 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 Fuse
1. Disconnect the cable from the vehicles
negative (–) battery terminal.
2. Grasp the fuse’s plastic end and pull it
out.
Caution:
than those specified. Doing so might damage
your amplifier.
Do not use a fuse with ratings other
Replacing the SFE-Type Fuse
1. Disconnect the cable from the vehicle’s
negative (–) battery terminal.
3. If the fuse is blown, replace it. Use only
a blade-type fuse with the proper rating.
The fuse must be 7.5 amps.
4. Grasp the new fuse’s plastic end and
push it in.
5. Reconnect the cable to the vehicle’s
negative (–) battery terminal.
Net Weight ........................................................................................................................................ 2.25 lbs
(1.02 kg)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
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 RadioSha ck comp any-own ed stores a nd a uthorized Radio Shack
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 CONSEQ UENTIAL 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, se t-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.
05A00
12-2013Printed in China
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
We Service What We Sell
12/99
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