Optimus PRO SW-120 User Manual

© 1996 Tandy Corporation.
All Rights Reserved.
Optimus is a registered trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporation.
Cat. No.
40-4054
PRO SW-120 12-Inch 100-Watt Subwoofer
System
Your PRO SW-120 12-Inch 100-Watt
Subwoofer System is designed to add
the dramatic realism of solid bass re-
sponse (below 150 Hz) to many
speaker systems. The subwoofer sys-
tem’s bass reflex design provides
clean bass response in the crucial bot-
tom octave of the audible range.
The subwoofer system’s effect is most
dramatic when it is combined with
mini-speakers. The mini-speakers re-
produce the high, mid-range, and up-
per bass frequencies, while the
subwoofer reproduces the low bass
frequencies. This results in height-
ened presence and clarity for the en-
tire audio range.
The subwoofer has a front-firing 12-
inch driver with a dual 2-inch voice
coil. This lets you connect both ste-
reo channels to a single subwoofer
system.
While your PRO SW-120 can work
with most speaker systems, it is de-
signed to give the best results with
RadioShack PRO-X7s (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 sim-
plify connections, we recommend
you place the subwoofer between
the left and right front stereo speak-
ers.
40-4054.fm Page 1 Wednesday, August 11, 1999 9:39 AM

Optimus PRO SW-120 Specifications

Power

power handling	100 Watts (RMS)
maximum power	200 Watts
dual coil impedance	8 Ohms

Acoustic Characteristics

frequency response	45–150 Hz
efficiency (SPL)	84 dB ±2 dB
woofer size	12-inch

Weight and Dimensions

dimensions	15[3]/4 × 14[5]/8 × 12[3]/4 In (400 × 370 × 323 mm)
weight	28 lb 3 oz (12.8 kg)
voice coil size	2-inch

Summary

Adding the Subwoofer to Your Speaker System

Connection Procedure

Connect amplifier/receiver terminals to subwoofer inputs and subwoofer outputs to speakers, noting wire gauge and phasing.

Maintenance

Care and Precautions

Tips for keeping the subwoofer dry, using correct temperatures, cleaning gently, and avoiding modifications.

Specifications

Technical Specifications

Details frequency response, power handling, driver size, dimensions, and weight of the subwoofer system.

Limited Warranty Information

Details the 5-year warranty against defects and limitations on coverage.