Optimus PRO X77 User manual

OPTIMUS*
Cat. No. 40-2072
PRO X77 5-Inch 2-Way Metal Cabinet
Speaker
INTRODUCTION
This speaker's internal elements were
exclusively designed to maintain
shape through all phases of opera-
tion, move diaphragm elements with
efficient speed, and reproduce high
frequencies extremely well.
The 5" driver in this speaker is
specially designed to accurately
produce all sonic information from 90
Hz to over 2.5 kHz. The pliable
diaphragm in the 3” x 31/2" driver can
accurately, and with extraordinarily low
distortion, produce sonic information
from 2.5 kHz to 25 kHz. Its unique
design means there is virtually no
physical limitation to its production of
high-frequency sound.
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:
Linzeum® Tweeter — uses a pliable
diaphragm to reduce or eliminate dis-
tortion caused by excess vibration. It
also can reproduce higher frequen-
cies (over 20 kHz) without being lim-
ited by its physical construction.
High-Compliance Woofer — accu-
rately tracks signals to provide out-
standing bass.
Acoustic Design — provides broad,
smooth frequency response.
SPEAKER PLACEMENT
For the best stereo image, place a
pair of speakers so the distance be-
tween them is about the same as the
distance between the listening area
and the point halfway between the
speakers.
Main
Listening —C)
Area
Distance Between Speakers for Stereo Effect
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. You might
want to experiment with your speak-
ers’ placement to discover the best lo-
cation for them.
© 1994 Tandy Corporation.
All Rights Reserved.
Optimus and Radio Shack are registered trademarks used by Tandy Corporation.
Linzeum is a registered trademark of Linzeum Corporation.

USING THE RUBBER FEET
You can use the supplied self-adhe-
sive rubber feet to avoid scratching
your furniture.
Smaller
1. Remove the paper backing from
the two larger feet and press them
against the front of the bottom of
the speaker.
2. Remove the paper backing from
the two smaller feet and press
them against the back of the bot-
tom of the speaker.
Note: You can place your PRO X77s
using speaker stands (Cat. Nos. 40-
2068A or 40-2069A), or mount them
in a vehicle, on a wall, under a shelf,
or on a ceiling using optional wall-
mount brackets (Cat. No. 40-2067A).
Follow the instructions provided with
the stands or brackets.
CONNECTIONS
With the speakers placed in their ap-
proximate locations, measure the
distance from each speaker to your
receiver/amplifier.
Use 18-gauge speaker wire for dis-
tances of 50 feet or less. For dis-
tances greater than 50 feet, use
heavier 16-gauge wire.
Note: For maximum bass response
and the best overall performance,
connect your speakers so they are in
phase with each other (+ with +, —
with —). 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.
Conductors
3. Press the tab on the left speaker's
negative (—) terminal and _ insert
one of the wire ends. Then release
the tab.

LL
4. Press the tab on the left speaker's
positive (+) terminal and insert the
other wire end. Then release the
tab.
5. Using the speaker’s wire code as a
guide, connect the left speaker's
negative (—) terminal to the re-
ceiver/amplifier’s left negative (-)
terminal.
Then connect the left speaker's
positive (+) terminal to the receiver/
amplifier’s left positive (+) terminal.
6. Repeat Steps 3-5 to connect the
right speaker.
MAINTENANCE
Your Optimus PRO X77 5-Inch 2-Way
Metal Cabinet 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
can contain minerals that can cor-
rode the electronic circuits.
* Handle the speaker gently and
carefully. Dropping it can damage
circuit boards and cases and cause
the speaker to work improperly.
e 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.
* 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.
Modifying or tampering with the
speaker's internal components can
cause a malfunction and might invali-
date the 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
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5"
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cm)
High-Compliance
Woofer,
3" x 3%" (7.6 x 9 cm) Linzzum Mono-Pole Tweeter
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Rubber
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Specifications
are
typical;
individual
units
might
vary.
Specifications
are
subject
to
change
and
improvement
without
notice.
FREQUENCY RESPONSE CURVE
: ie
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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.
Whithin
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
WARRANTIES,
EXPRESS
OR
IMPLIED,
INCLUDING
WARRANTIES
OF
MERCHANTABILITY
AND
FITNESS
FOR
A
PARTICULAR
PURPOSE.
Some
states
do
not
permit
limitation
or
exclusion
of
implied
warranties;
therefore,
the
aforesaid
limitation(s)
or
exclusion(s)
may
not
apply
to
the
purchaser
This warranty gives you specific legal rights and you may also have other rights which vary from state to state
We Service What We Sell
RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
7A4 Printed in Malaysia