Optimus PRO SW-120 User Manual
40-405 4.fm Page 1 We dnesday, A ugust 11, 1999 9:39 AM
Cat. No.
PRO SW-120 12-Inch 100-Watt Subwoofer
System
Your PRO SW-120 1 2-Inch 100-Watt
Subwoofer System is designed to add
the dramatic realism of solid bass response (below 150 Hz) to many
speaker systems. The subwoofer system’s bass reflex design provides
clean bass response in the crucial bottom octave of the audible range.
The subwoofer system’s effect is most
dramatic when it is combined with
mini-speakers. The mini-speakers reproduce the high, m id-range, and u pper bass frequencies, while the
subwoofer reproduces the low bass
frequencies. This results in heightened presence and clarity for the entire audio range.
The subwoofer has a front-firing 12inch driver with a dual 2-inch voice
coil. This lets you connect both stereo channels to a single subwoofer
system.
While your PRO SW-120 can work
with most speaker systems, it is designed to give the best results with
RadioShack PRO-X 7s (Cat. No. 40-
2071), PRO-X77s (40-2077), or PRO
LX5 (Cat. No. 40-4061) speakers.
Because low frequencies are much
less directional than other sounds,
you can use a single subwoofer for
both stereo channels. You can put
the subwoofer almost anywhere in
your listening area. However, to simplify connections, we recommend
you place the subwoofer between
the left and right front stereo speakers.
40-4054
© 1996 Tandy Corporation.
Opti mus is a registe red trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporation.
All Rights Reserved.
Lef
40-405 4.fm Page 2 We dnesday, A ugust 11, 1999 9:39 AM
ADDING THE SUBWOOFER TO YOUR SPEAKER
SYSTEM
Right
Speaker
+
–
FROM AMPLIFIER/RECEIVER
INPUT
LEFT
+
Amplifier/Receiver
RIGHT
–
–
+
We recommend you use color-coded
or marked wires to help you correctly
connect the subwoofer to your sound
system. Color-coded wires have a
stripe, and marked wires have ridges
along one of the c onductors. Your local RadioShack store has a wide selection of speaker wire.
With the subwoofer in the chosen location, make the following connections.
1. Connect your amplifier/receiver’s
left and right speaker terminals to
the subwoofer’s corresponding
INPUT
termi n als.
t
Speaker
+
–
OUTPUT
TO SPEAKERS
–
+
LEFT RIGHT
+–
PRO SW-120
2. Connect the subwoofer’s
PUT
terminals to the correspond-
ing left and right stereo speakers.
Notes:
• For distances less than 25 fe et,
use 18-gauge speaker wire.
• For distances greater than 25
feet, use heavier 16-gauge
speaker wire.
• For maximum bass response
and the best overall performance, it is essential that you
keep your subwoofer in proper
phase with your speakers (connected + to + and – to –).
OUT-
2
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