Optimus PRO LX8 User Manual

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PRO LX8 Bookshelf Speaker

Important

protective packing materials before
using the speaker (see the separate
“Special Precautions” included with
your speaker).

: Be sure you remove the

The 8-inch driver is specially designed
to accurately produce all sounds from
50 to 2,200 Hz.

The pliable diaphragm in the 2
inch wide-dispersion tweeter can ac­curately produce sounds from 2,200 to
25,000 Hz with extraordinarily low dis­tortion. The tweeter’s unique design
means there is virtually no physical
limitation to its high-frequency sound
production.

The speaker cabinet is finished in
black woodgrain vinyl. The black clot h
grilles are acoustically transparent,
and you can remove them for safe and
easy cleaning.

The LX8’s features include:

Cat. No.

40-4064

×

4-

OPTIMUS

Your PRO LX8 Bookshelf Speaker’s
internal elements were exclusively de­signed to give you amazing m usic re­production in a small enclosure. It
produces high sound quality with very
low distortion, and actually delivers
decreasing distortion as the sound
moves to the higher frequency ranges.

© 1997 Tandy Corporation.

All Rights Reserved.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

Acoustic Desi

smooth frequency response.

360° Wide-Dispersion Tweeter

reproduces frequencies over 20 kHz
and uses a pliable diaphragm to re­duce or eliminate distortion caused by
excess vibration.

Hi

h-Compliance Woofer

rately tracks signals to provide out­standing bass.

— provides broad,

n

— accu-

—

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SPEAKER PLACEMENT

For the best stereo image, place a pair
of speakers on a bookshelf or table so
the distance between them is about
the same as the distance bet ween the
listening area and the point halfway
between the speakers.

a

b

a=b

If you must place the speakers f arther
apart, turn them slightly inward. If you
must place them closer to ea ch other,
turn them slightly outward. You might
want to experiment with your speak­ers’ placement to discover the best lo­cation for them.

CONNECTIONS

With a pair of speakers placed in their
approximate locations, measure the
distance from each speaker to your re­ceiver/am pl ifi er. Use 1 8-g auge spe ake r
wire for distances of 50 feet or less.
Use heavier 16-gauge wire for distanc­es greater than 50 feet.

For maximum bass res ponse and the
best overall performance, connect
your speakers so they are in phase
with the receiv er / a mplifier te rminals (+
to + and – to –). Y ou can eas ily mak e
the proper connections with marked
speaker wire, available at your local
RadioShack store.

1. Separate the wire’s two conduc­tors at both ends for a length of
about 2 inches.

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e

ch

n

I

2

1

Inch

/2

2. Strip the insulation from the ends
of each conductor to expose

1

/

2

inch o f metal wire, the n twist the
loose wire strands.

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3. Turn the left speaker’s negative (–)
terminal counterclockwise to
loosen it, and insert one of the
unmarked wire ends into the
opening. Then turn the terminal
clockwise to tighten it.

Note: You can also use banana
plugs to make this connection.

4. Turn the left speaker’s positive (+)
terminal counterclockwise to
loosen it, and insert the marked
conductor’s wire end into the
opening. Then turn the terminal
clockwise to tighten it.

5. Connect the opposite end of the
left speaker’s unmarked wire to the
receiver/amplifier’s left negative (–)
terminal.

Then connect the opposite end of
the left speaker’s marked wire to
the receiver/amplifier’s positive (+)
terminal

6. Repeat Steps 3–5 t o connect the
right speaker.

MAINTENANCE

Your Optimus PRO LX8 Bookshelf
Speaker is an example of supe rior de­sign and craftsmanship. The followi ng
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.

• Handle the speaker gently and
carefully.

• Use and store the s peaker only i n
normal temperature environ­ments.

• Keep the speaker away from dust
and dirt, which can cause prema­ture wear of parts.

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

Caution: Do not clean the speaker
with a vacuum cleaner. This might
permanently damage it. Clean the
speaker with a feather duster or soft
cloth.

Modifying or tampering with the
speaker’s internal components can
cause a malfunction and might invali­date the speaker’s warranty. If your
speaker is not performing as it should,
take it to your local RadioShack store
for assistance.

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SPECIFICATIONS

Frequency Response .............. .......... .. .......... .. .......... .. .......... ............ .......... .. .....50-25,000 Hz

Power Handling ............................................................................................. 70 Watts (RMS)

Maximum Power ......................................................................................................140 Watts

Impedance .............................................. .. .......... .. .......... .. .......... .. .......... ... 8 Ohms (Nominal)

Speaker Complement .......................................... 8-Inch (20.3 cm) High-Compliance Woofer

×

4-Inch (5 × 10 cm) Wide-Angle Dipol e Tweeter

2

Enclosure................................................ .. .......... .. .......... .. .......... .. ..... Black Wood Grain Vinyl

1

Dimens io ns (HWD ) .. ............... .. ... ....... 18

Weight .............. .. ...................... ... .. ....... ... .. ........ .. ...................... .. ... ....... ... .. ... 1 6 .8 lb s (7.6 kg)

Specifications are typical; individual units might vary. Specifications are subject to change
and improvement without not ice.

Limited Five-Year Warranty

This product is warranted by RadioShack against manufacturing defects in material and workmanship under nor­mal use for fiv e (5) year s from th e date of purchase from RadioS hack com pany- owned stores a nd authorized
RadioShack franc hisees and de alers. EXCEPT AS PR OVIDED HEREIN, Rad ioShack MAK ES 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 BREA CH OF THIS WARRANTY, INCLUDING, BUT
NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIM E, DATA, PROP­ERTY, REVE NUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM­AGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the l imitations on how long an implied w arranty las ts or the exclusion 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) refun d the purchase pr ice. All rep laced par ts and produ cts, and pr oducts on whi ch
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 war ranty per iod. You will be c harged for repai r or r eplace ment of th e pr odu ct made after the ex pira ­tion of the warranty period.
This warranty does not cover: (a) damage or failur e caused by or attributable to acts of God, abuse, accident,
misuse, improper or abnormal usage, fa ilure to follo w instructions, impr oper installatio n or maintenance, al ter­ation, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a Ra­dioShack Authorized Service Facility; (c) consumables suc h as fuses or batteries; (d) cosmetic damage; (e)
transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-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.

RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102

We Service What We Sell

/4 × 913/16 × 121/16 Inches (46.3 × 25.0 × 30.6 cm)

3/97

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

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