Radio Shack 40-244 Owner's Manual
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