Optimus PRO SW-120 User Manual

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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

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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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MAINTENANCE

The following suggestions will help you care for the speaker system so you can en­joy it for years.

Keep the subwoofer dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.

Use and store the subwoofer only in normal temperature environ­ments. Temperature extremes c an short en the l ife o f electronic devic­es and distort or melt plastic parts.

Wipe the subwoofer with a damp cloth occasionally to keep it looking

CLEANER

new. Do not use harsh chemic als, cleaning solvents, or strong deter­gents to clean the subwoofer.

Caution:

You might permanently damage your subwoofer by cleaning it with a vac-

uum cleaner. Use a feather duster or a very soft cloth instead.
Modifying or tampering with the subwoofer’s internal components can cause a mal-

function and might invalidate the subwoofer’s warranty. If your subwoofer is not
performing as it should, take it to your local RadioShack store for assistance.

3

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SPECIFICATIONS

Frequency Response ...............................................................................45–150 Hz

Power Handling..............................................................................100 Watts (RMS)

Maximum Power........................................................................................200 Watts

Efficiency (SPL).....................................................................................84 dB ±2 dB

Dual Coil Impedance .....................................................................8 Ohms, Nominal

Speakers:

Woofer.....................................................................................................12-inch

V o ice Coil..... .............................................................................................2-inch

Enclosure.............................................................................Wood grain, Black Vinyl

3

/

Dimensions (HWD).................................................................15

(400

4

¥

¥

145/

370

Weight ....................................................................................................... 28 lb 3 oz

Specifications are typical; individual uni ts might vary. Specifications are subj ect to
change and improvement without notice.

8

¥

323 mm)

¥

(12.8 kg)

123/4 In

RadioShack Limited Warranty

This pro du ct is warra nt ed ag ains t de fect s f or 5 years fro m da te o f purc ha se fro m R adio Sha ck
company-owned stores and authorized RadioShack franchisees and dealers. Within this
period, we will repair it without charge for par ts and labor. Simply

sales slip

portation costs. Nor does it cover a product subjected to misuse or accidental damage.
EXCEPT AS PROVIDED HEREIN, Radio Shack MAKES NO EXPRESS WARRANTIES AND
ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION OF THE
WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states do not perm it limita­tion or exclusion of implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may
not apply to the purchaser.

This warranty gi ves you speci fic legal rights and you may al so have other rights which v ary from state to
state.

as proof of purchase date to any RadioShack store. Warranty does not cover trans-

We Service What We Sell

bring your RadioShack

10/95

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

6A6 Printed in Malaysia