Radio Shack PRO LX7 User manual

© 1995 Tandy Corporation.
All Rights Reserved.
Optimus and Radio Shack are registered trademarks used by Tandy Corporation.
Cat. No. 40-4063
PRO LX7 Bookshelf Speaker
Your PRO LX7 Bookshelf Speaker’s
internal elements were exclusively de-
signed to maintain shape through all
phases of operation, move diaphragm
elements with efficient speed, and
faithfully reproduce high frequencies.
The 7-inch driver is specially designed
to accurately produce all sonic infor-
mation from 45 Hz to 2 kHz. The pli-
able diaphragm in the 3-inch ¥31/2-inch
driver can accurately produce sonic in-
formation from 2 kHz to 25 kHz with
extraordinarily low distortion. The
tweeter’s unique design means there
is virtually no physical limitation to its
production of high-frequency sound.
The speaker cabinet is finished in
black woodgrain vinyl. The black cloth
grille is acoustically transparent, and
you can remove it for safe and easy
cleaning.
This speaker gives you amazing music
reproduction in a small enclosure. It
produces high sound quality with very
low distortion, and actually delivers de-
creasing distortion as the sound
moves to the higher frequency ranges.
Its features include:
Optimus True Line Source Driver —
uses a pliable diaphragm to reduce or
eliminate distortion caused by excess
vibration. It also can reproduce higher
frequencies (over 20 kHz) without be-
ing limited by its physical construction.
Hi
g
h-Compliance Woofer — accu-
rately tracks signals to provide out-
standing bass.
Acoustic Desi
g
n— provides broad,
smooth frequency response.
SPEAKER PLACEMENT
For the best stereo image, place a pair
of speakers so the distance between
them isabout the same as the distance
between the listening area and the
point halfway between the speakers.
If you must place the speakers farther
apart, turn them slightly inward. If you
must place them closer to each other,
turn them slightly outward. Experiment
with your speakers’ placement to dis-
cover the best location for them.
OPTIMUS
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2
CONNECTIONS
With a pair of speakers placed in their
approximate locations, measure the
distance from each speaker to your re-
ceiver/amplifier.
Use 18-gauge speaker wire for dis-
tances of 50 feet or less. For distances
greater than 50 feet, use heavier 16-
gauge wire.
Note: For maximum bass response
and the best overall performance, con-
nect your speakers’ terminals to the
corresponding terminals on the receiv-
er/amplifier (+ to +, and – to –). You
can easily make the proper connec-
tions with coded speaker wire, avail-
able at your local Radio Shack store.
1. Separate the wire’s two conduc-
tors at both ends for a length of
about 4 inches.
2. Strip the insulation from the ends
of each conductor to expose 1/4
inch of metal wire, then twist the
loose wire strands.
3. Turn the left speaker’s negative (-)
terminal counterclockwise to
loosen it and insert one of the wire
ends into the opening. Then turn
the terminal clockwise to tighten it.
4. Turn the left speaker’s positive (+)
terminal counterclockwise to
loosen it and insert one of the wire
ends into the opening. Then turn
the terminal clockwise to tighten it.
5. Using the speaker wire’s code as
a guide, connect the wire from the
left speaker’s negative (–) termi-
nal to the receiver/amplifier’s left
negative (–) terminal.
Then connect the wire from the
left speaker’s positive (+) terminal
to the receiver/amplifier’s left posi-
tive (+) terminal.
6. Repeat Steps 1-5 to connect the
right speaker to the receiver/
amplifier’s right terminals.
C
onductors
4 Inches
/ Inch
4
1
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3
CARE AND MAINTENANCE
Your Optimus PRO LX7 Bookshelf Speaker is an example of superior design and
craftsmanship. The following suggestions will help you care for your speaker so you
can enjoy it for years.
Keep the speaker dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.
Use and store the speaker only in normal temperature environments.
Temperature extremes can shorten the life of electronic devices and
distort or melt plastic parts.
Keep the speaker away from dust and dirt, which can cause prema-
ture wear of parts.
Handle the speaker gently and carefully. Dropping it can damage cir-
cuit boards and cases and can cause the speaker to work improperly.
Wipe the speaker with a damp cloth occasionally to keep it looking
new. Do not use harsh chemicals, cleaning solvents, or strong deter-
gents to clean the speaker.
Caution: You might permanently damage your speaker by cleaning it with a vacuum
cleaner. Instead, use a feather duster or a soft cloth.
Modifying or tampering with the speaker’s internal components can cause a mal-
function and might invalidate your speaker’s warranty. If your speaker is not per-
forming as it should, take it to your local Radio Shack store for assistance.
CLEANER
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RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
10A5 Printed in Malaysia
SPECIFICATIONS
Frequency Response...........................................................................45-25,000 Hz
Power Handling................................................................................80 Watts (RMS)
Maximum Power ....................................................................................... 160 Watts
Impedance ...................................................................................8 Ohms (Nominal)
Speaker Complement ........................... 7-inch (17.8 cm) High-Compliance Woofer,
3-inch ¥31/2-inch (7.6 ¥9 cm) Wide-Angle Mono-Pole Tweeter
Enclosure.........................................................................Black Wood-Grained Vinyl
Cabinet Dimensions.......................19 ¥9 ¥11 Inches (48.2 ¥22.8 ¥28 cm) (HWD)
Weight .............................................................................................14.8 lbs (6.7 kg)
Specifications are typical; individual units might vary. Specifications are subject to
change and improvement without notice.
RADIO SHACK LIMITED WARRANTY
This product is warranted against defects for 5 years from date of purchase from Radio
Shack company-owned stores and authorized Radio Shack franchisees and dealers.
Within this period, we will repair it without charge for parts and labor. Simply bring your
Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty
does not cover transportation costs. Nor does it cover a product subjected to misuse or
accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO EXPRESS WARRAN-
TIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURA-
TION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states
do not permit limitation or exclusion of implied warranties; therefore, the aforesaid limi-
tation(s) or exclusion(s) may not apply to the purchaser.
This warranty
g
ives you specific le
g
al ri
g
hts and you may also have other ri
g
hts which vary from
state to state.
We Service What We Sell
9/94
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