OWNER’S MANUAL — Please read before using this equipment.
©
2000 RadioShack Corporation. All Rights Reserved.
RadioShack and RadioShack.com are trademarks
used by RadioShack Corporation.
40W Power Booster/Amplifier
Your RadioShack 40W Power Booster/Am-
plifier boosts the power output from your ste-
reo car radio or tape player to enhance the
sound of your car audio system. The booster
is compact and easy to install using the sup-
plied mounting bracket.
Be sure to read this entire manual for proper
installation and operation.
If you are unsure about any part of installa-
tion, we recommend you have an automotive
audio specialist install the booster. Improper
wiring could damage your vehicle’s electrical
system.
INSTALLATION
Before you install the booster, be sure your
vehicle, radio/tape player, and speakers
meet the following requirements:
• The vehicle must have a 12-volt DC,
negative-ground electrical system.
• The radio/tape player must be a BTL
(Balanced Transformer-Less) or com-
mon-ground type.
• The speakers’ total power handling
capacity should be at least 40 watts. For
example, if you use four 8-ohm speak-
ers, each speaker must be able to han-
dle at least 10 watts. If the power-
handling capacity is too low, you might
damage your speakers.
Connecting the Booster’s Wiring
Follow these steps to connect the booster
using the radio/tape player’s front speaker
connector.
Connection between the booster and radio/
tape player’s front speaker requires wire con-
nectors available at your local RadioShack
store.
1. Connect the radio/tape player’s front left
positive (+) speaker wire to the booster’s
white wire.
2. Connect the radio/tape player’s front left
negative (–) speaker wire to the
booster’s white wire with a black line.
3. Connect the radio/tape player’s front
right positive (+) speaker wire to the
booster’s gray wire.
4. Connect the radio/tape player’s front
right negative (–) speaker wire to the
booster’s gray wire with a black line.
5. Connect the booster’s black ground wire
to a chassis ground such as a clean,
metal bolt attached to the vehicle’s
frame. Be sure the bolt is not insulated
from the frame by a plastic part.
Left Speaker
Right Speaker
Booster
Radio/Tape Player
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