Radio Shack PRO LX7 User Manual

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PRO LX7 Bookshelf Speaker

Cat. No. 40-4063

produces high sound quality with very
low distortion, and actually delivers de­creasing distortion as the sound
moves to the higher frequency ranges.

Its features include:

OPTIMUS

Your PRO LX7 Bookshelf Speaker’s
internal elements were exclusively de­signed to maintain shape through all
phases of operation, mo ve diaphragm
elements with efficient speed, and
faithfully reproduce high frequencies.

The 7-inch driver is specially designed
to accurately produce all sonic infor­mation from 45 Hz to 2 kHz. The pli­able diaphragm in the 3-inch

31/2-inch

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driver can accurately produce sonic in­formation from 2 kHz to 25 kHz with
extraordinarily low distortion. The
tweeter’s unique design means there
is virtua lly no physica l limitation t o 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

Opti m us True Line Source Driver

—
uses a pliable diaphragm to reduce or
eliminate distortion c aused by excess
vibration. It also can reprod uce hig her
frequencies (over 20 kHz) wi thout be­ing limited by its physical construction.

Hi

h-Compliance Woofer

— accu­rately tracks signals to provide out­standing bass.

Acoustic Desi

— provides broad,

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smooth frequency response.

SPEAKER PLACEMENT

For the best stereo image, place a pair
of speakers so t he distance between
them is about the same as the distance
between the listening area and the
point halfway between the speakers.

If you must place the speak ers 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 dis­cover the best location for them.

© 1995 Tandy Corporation.

Optimus and Radio Shack are registered trademarks used by Tandy Corporation.

All Rights Reserved.

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CONNECTIONS

With a pair of speakers placed in their
approximate locations, measure the
distance from each speaker to your re­ceiver/amplifier.

Use 18-gauge speaker wire for dis­tances of 50 feet or less. For distances
greater than 50 feet, use heavier 16­gauge wire.

Note:

For maximum bass response
and the best overall performance, con­nect your speakers’ terminals to the
corresponding terminals on the receiv­er/amplifier (+ to +, and – to –). You
can easily make the proper connec­tions with coded speaker wire, avail­able at your local Radio Shack store.

1. Separate the wire’s two conduc­tors at both ends for a length of
about 4 inches.

2. Strip the insulation from the ends
of each conductor to expose
inch of metal wire, then twist the
loose wire strands.

1

/ Inch

4

onductors

4 Inches

1

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-

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4

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 posi­tive (+) terminal.

6. Repeat Steps 1-5 to connect the
right speaker to the receiver/
amplifier’s right terminals.

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CARE AND MAINTENANCE

Your Optimus PRO LX7 B ookshelf Speaker is an exam ple 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 awa y from d us t and di rt, whi ch c an cause prema­ture wear of parts.

Handle the speaker gently and carefully. Dropping it can damage cir­cuit boards and cases and can cause the speaker to work improperly.

Wipe the speaker with a damp cloth occasionally to keep it looking

CLEANER

new. Do not use harsh chemicals, cleaning solvents, or strong deter­gents 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 spea ker’s internal components can caus e a mal-

function and might inv alidate your speaker’s warranty. If your speaker is not per­forming as it should, take it to your local Radio Shack store for assistance.

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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

Enclosure.........................................................................Black Wood-Grained Vinyl

31/2-inch (7.6 ¥ 9 cm) Wide-Angle Mono-Pole Tweeter

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Cabinet Dimensions.......................19

9 ¥ 11 Inches (48.2 ¥ 22.8 ¥ 28 cm) (HWD)

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Weight .............................................................................................14.8 lbs (6.7 kg)

Specifications are typical; individual units m ight vary. Specifications are subj ect 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 mis use or
accidental damage.
EXCEPT AS PROVI DED H EREIN, RADI O SHA CK M AK ES NO EX PRESS WARRAN­TIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURA­TION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states
do not pe r m it lim i t at io n or ex cl us io n of im pl ie d w arr a n t ie s; therefo r e, the afo resaid limi­tation(s) or exclusion(s) may not apply to the purchaser.

This warranty gives you specifi c legal rights and you may also have othe r rights which vary fr om
state to state.

We Se rvi ce What We Sell

9/94

RADIO SHACK

A Division of Tandy Corporation

Fort Worth, Texas 76102

10A5 Printed in Malaysia