Optimus Electronic Subwoofer User Manual
12-2012.fm Page 1 Tuesday, July 13, 1999 2:50 PM
Electronic Subwoofer
Cat. No. 12-2012
OWNER’S MANUAL
Please read before using this equipment.
Crossover
y
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FEATURES
Your Optimus Electronic Subwoofer
Crossover is designed to give you excellent control over the sound produced by your autosound system.
The crossover directs a selectable
range of lower audio frequencies to
your subwoofer speakers for increased bass response, and blocks
mid-range frequencies to enhance
sound clarity.
The crossover’s features include:
Two T
pes of Inputs
— lets you use
the crossover with an autosound s ystem that has either line-out jacks or
standard speaker outputs.
Low Pass F ilter S elec tor
— lets you
adjust the frequency filter to 50 Hz, 90
Hz, or 180 Hz to match your subwoofer speaker system.
Inpu t Level Co ntrols
— let you adjust line or speaker input levels to
match your autosound system.
Bass Boost Controls
— let you
boost the selected subwoofer bass
output by 12 dB.
©
1996 Tandy Corporation.
Optimus is a registered trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporat ion.
All Rights Reserv ed .
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INSTALLATION
You can easily connect this crossover. However, improper connections can damage your crossov er and
other components in your autosound
system, and possibly your vehicle’s
electrical system. Before you begin,
you should know:
• Which wire is the power wire in
your vehicle’s electrical system
• If your autosound system has
line-level or speaker-level outputs
Before you install your crossover,
carefully read all the installation instructions in this ow n er ’s manual.
Notes:
• Use audio patch cables with
phono-type connectors (available at your local RadioShack
store) to complete the low level
input/output connections.
• Use your autosound system’s
speaker wires to complete the
high level input connections.
• Use 18-gauge wire (available at
your local RadioShack store) to
complete the power connections.
• Turn your autosound system’s
volume all the way down before
installation.
• Set the subwoofer amplifier gain
(input level) and crossover input
level controls to their midpoints.
CHOOSING A
MOUNTING LOCATION
Choose the moun ting location for the
crossover first, but do not mount it until you have connected the wiring, adjusted the controls, and confirmed
that the crossover operates properly
with your system. By choosing the location first, you can later mount the
crossover without re-routing the
wires.
Choose a mounting location that:
• Is as near as possible to your
autosound system connections (It
is important to keep the audio
cables as short as possible to
reduce noise and interference)
• Does not interfere with the operation of the vehicle
• Is not directly in front of a heating
vent
• Allows drilling of mounting holes
without damaging other vehicle
components
• Allows convenient and safe routing of wires
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