Radio Shack 40 244 Users Manual

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Your RadioShack High Power Stereo Speaker Control

Center lets you connect up to four separate pairs of

speakers to your stereo receiver/amplifier. The control

center is especially convenient if you have speaker sets

in different rooms and want to turn them on and off inde-

pendently.

The control center lets you use one to four sets of speak-

ers at a time, and is designed to operate with a stereo re-

ceiver/amplifier that has a maximum of 100 watts per

channel, and with speaker systems that have a minimum

impedance of 8 ohms (see “Impedance Chart” on

Page 2).

MAKING THE CONNECTIONS

The control center divides the power from your receiver/

amplifier differently to its speaker terminals. (This is espe-

cially noticeable when you connect only one pair of

speakers. If you connect more than one pair of speakers,

see “Impedance Chart” on Page 2 to select the best ter-

minals to connect.) For the best performance, make the

connections based on how frequently you use each set of

speakers.

• Connect the most frequently used speakers to the

terminals marked SPK A.

• Connect the speakers you use least often to the ter-

minals marked SPK D.

• Connect any other speakers to the terminals marked

SPK B and C.

Cautions: To avoid damaging your speakers or receiver/

amplifier:

• Be sure your receiver/amplifier’s power is turned off

before you make the connections.

• Never let the speaker wire’s bare ends touch each

other or the adjacent terminals on the control center.

• Do not connect more than one pair of speakers to

each set of terminals.

Press open the desired SPK terminals on the control cen-

ter. Insert the speakers’ positive (+) wires in the positive

(red) terminals, and negative (–) wires into the negative

(black) terminals, according to the respective L (left) and

R (right) terminals. Then press the tabs to close them.

Press open the AMP terminals on the control center, then

insert your receiver/amplifier’s positive (+) wires into the

positive (red) terminals, and negative (–) wires in the neg-

ative terminals. Then press the tabs to close them.

Notes:

• If your receiver/amplifier has more than one set of

speaker terminals (A and B), connect only one or the

other to the control center.

• For the best results, we recommend 18-gauge, two

conductor speaker wire (not supplied) for most con-

nections. If you plan to locate the speakers further

than 80 feet from the control center, use a heavier

gauge of wire.

Your local RadioShack store carries a wide selection of

speaker wire and accessories.

OPERATION

Caution: To avoid damaging your receiver/amplifier, set

its volume to the lowest setting before changing the con-

trol center’s settings.

To turn on a pair of speakers connected to the control

center, simply press in the desired button (A, B, C, or D).

For example, to turn on the set of speakers connected to

SPK A, press A.

To turn off a pair of speakers, press the button again so it

is in the “out” position.

Terminal Buttons

Speaker

Terminals

Open Close

Cat. No. 40-244

High Power Stereo Speaker Control Center

© 1999 Tandy Corporation.

All Rights Reserved.

RadioShack is a registered trademark used by Tandy Corporation.

40-244.fm Page 1 Wednesday, June 30, 1999 2:33 PM

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

06A99 Printed in Taiwan

Note: If no speakers are connected to a set of terminals

(A, B, C, or D), do not press in the corresponding control

button.

IMPEDANCE CHART

Impedance is a measurement of the load placed on your

receiver/amplifier by the speakers. The load placed on

your receiver/amplifier from the control center will vary

depending on how many pairs of speakers you turn on at

one time, and on which speakers you turn on. The chart

below shows the impedance for all possible combinations

of 8-ohm speakers.

SPECIFICATIONS

Audio Power Handling ........................ 50 W (R.M.S.)/ch,

100 W (Max)/ch

Frequency Response ............................ 20 Hz to 20 kHz

Channel Separation.................................................80 dB

Crosstalk between channels....................................50 dB

Speaker terminal wire size requirements .......14–22 awg

Speaker Sets On Impedance (

((

(Ω

ΩΩ

Ω)

))

)

A, B, C or D 8

A + B 16

A + C 4

A + D 4

B + C 4

B + D 4

C + D 16

A + B + C 5.3

A + B + D 5.3

A + C + D 5.3

B + C + D 5.3

A + B +C + D 8

Limited Ninety-Day Warranty

This product is warranted by RadioShack against manufacturing defects in

material and workmanship under normal use for ninety (90) days from the date

of purchase from RadioShack company-owned stores and authorized Ra-

dioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-

dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED

WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DU-

RATION 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 EN-

TITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-

RECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT

OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING,

BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-

NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, 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 limitations on how long an implied warranty lasts

or the exclusion of incidental or consequential damages, so the above limita-

tions 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 Ra-

dioShack 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) refund the

purchase price. All replaced parts and products, and products on which a re-

fund 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

warranty period. You will be charged for repair or replacement of the product

made after the expiration of the warranty period.

This warranty does not cover: (a) damage or failure caused by or attributable

to acts of God, abuse, accident, misuse, improper or abnormal usage, failure

to follow instructions, improper installation or maintenance, alteration, lightning

or other incidence of excess voltage or current; (b) any repairs other than

those provided by a RadioShack Authorized Service Facility; (c) consumables

such 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, 200 Taylor Street, 6th Floor,

Fort Worth, TX 76102

We Service What We Sell

04/99

40-244.fm Page 2 Wednesday, June 30, 1999 2:33 PM