Optimus STA-7500 - Connecting Speakers; Speaker Placement; Speaker Connections

CONNECTIONS
This section describes components you can con-
nect to create a complete audio/video system. Your
local Radio Shack store has a wide selection of
audio/video components to suit almost every appli-
cation and budget.
Caution: Do not plug in or turn on the receiver until
you complete all connections for the speakers,
audio sources, and antennas.
CONNECTING SPEAKERS
You can connect up to four speakers to the receiver.
You can set up one pair of speakers in your main
listening area and another pair in a second listen-
ing area. Or set up both pairs in a single listening
area for a “Surround Sound” effect.
Your stereo system can sound only as good as your
speakers allow, so choose the best speakers
possible.
For the best performance from your system, select
from Radio Shack’s fine line of Optimus speakers.
Radio Shack also has more economical speakers
that provide superb performance as auxiliary
speakers or main speakers when used in smaller
rooms.
Speaker Guidelines
¢ Be sure your speakers can handle the receiver’s
maximum power output of 70 watts. If you consis-
tently listen to music at a higher volume level, we
recommend speakers with a higher power rating.
e Use only speakers with an impedance of 8 to 16
ohms.
© Connect no more. than two pairs of speakers to
the receiver.
e Use 18-gauge speaker wire if your speakers are
within 25 feet of the receiver. Use 16-gauge
speaker wire for distances greater than 25 feet.
e Use only the length of wire necessary to connect
the speakers.
¢ Be sure that stray wire strands from one speaker
terminal do not touch another speaker terminal.
Speaker Placement
Use the following information to help you determine
the best location for your speakers. You might want
to experiment with various speaker placements.
For the best stereo effect, place each pair of
speakers so the distance between the left and right
speaker is the same as the distance between the
listening area and the point halfway between the
speakers. If the distance between the speakers is
greater, you can improve the sound by angling the
speakers toward you.
b Halfway Point
Between Speakers
a=b
Listening Area
Adjusting the Bass
To increase the bass, place the speakers in the
corner of the room, against the wall, or directly on
the floor.
To decrease the bass, move the speakers slightly
away from the corner, increase the distance
between them and the wall, and/or raise them 6 to
8 inches off the floor. You can purchase speaker
stands at your local Radio Shack store.
Speaker Connections
1. Select the location for each speaker. Then cut
the length of speaker wire needed to connect
each speaker to the receiver.
2. Prepare the ends of the speaker wire by doing
the following.
a. Separate the two conductors for a length of
about 4 inches.