PRO-SW220P 200-Watt-Powered Subwoofer
Your RCA PRO-SW220P 200-Watt
Powered Subwoofer is designed to give
you the best possible low frequency sound
for the ultimate home theater experience.
You will be astonished by the realism it
adds to movie sound effects and the power
it lends to all kinds of music.
Note: You need speaker wire (not
supplied) to connect the subwoofer to an
amplifier or receiver’s speaker outputs.
High Level Output — lets you connect
the subwoofer between an amplifier or
receiver (without line out terminals) and
other speakers.
The subwoofer combines the power of a
built-in 200-watt RMS amplifier with a
responsive, 12-inch coated paper cone
woofer — all housed in a ported bass-
reflex enclosure to produce tight, floor-
rumbling powerful bass (down to 36 Hz)
that you can feel as well as hear. The
power indicator lets you know when the
subwoofer is operating.
Low Level Input — lets you connect the
subwoofer to an amplifier’s or receiver’s
subwoofer out or pre out jacks. These
inputs automatically sum left and right
channel information.
Note: You need phono cables (not
supplied) to connect the subwoofer to an
amplifier or receiver’s subwoofer out or
pre out jacks.
Your subwoofer has an adjustable high cut
filter and high and low level inputs so it is
easily incorporated into existing systems,
or used as an integral part of a subwoofer/
satellite combination.
Volume Control — lets you match the
PRO-SW220P’s output level to your
satellite speakers’ output (if used).
Its other features include:
Phase (Polarity) Switch — Inverts the
subwoofer’s output polarity so you can set
it to match the main speakers.
Auto On/Off — automatically switches
the PRO-SW220P’s amplifier to standby if
the subwoofer does not receive a signal for
about 11 minutes.
Frequency Hz Control — lets you set the
high frequency cutoff point. Rotated fully
clockwise, the subwoofer cuts high
frequencies over 200 Hz. Rotated fully
counterclockwise, it cuts high frequencies
over 50 Hz.
Standby Indicator — power indicator
changes color when the subwoofer is
connected to power but not receiving a
signal.
High-Level Input — lets you connect the
subwoofer to an amplifier’s or receiver’s
speaker outputs.
© 2001 RadioShack Corporation.
All Rights Reserved.
you place the PRO-SW220P at least 4
inches away from the wall, and at least 2–3
feet away from your television or
computer’s disk drive system so the
subwoofer’s magnet will not distort the
colors of your TV picture or erase your
floppy disks.
CHOOSING A LOCATION
Cautions:
• To prevent the cabinet from warping
or discoloring, do not place the
subwoofer in a place where it is
exposed to direct sunlight or excessive
humidity.
• Do not place the subwoofer where it
might be knocked over or exposed to
falling objects.
ATTACHING FEET
Using the supplied screws, secure the four
protective feet (packed separately) into the
pre-drilled holes at each corner of the
cabinet’s bottom.
• The metal control panel on the back
of the PRO-SW220P acts as the heat
sink for the subwoofer’s internal
amplifier. Therefore, place the unit at
least 4 inches (10 cm) away from a
wall, and do not let anything come
into contact with this panel.
CONNECTING TO AN
AMPLIFIER
Where and how you position your
subwoofer greatly affects its bass response.
Adjusting the subwoofer’s volume control
in relation to the left and right speakers
and adjusting the subwoofer’s high cut
filter also affects your speakers’ overall
sound.
You can connect your PRO-SW220P to an
amplifier/receiver’s subwoofer out or pre
out jacks or speaker terminals.
Note: You can connect your PRO-
SW220P to your TV if it has variable line
out jacks.
Although low frequencies are non-
directional, factors such as room
Caution: To avoid any damage to the
subwoofer or amplifier, disconnect power
from your components before making any
connections.
reflections, standing waves, resonance,
and absorption strongly affect your
subwoofer’s performance. For maximum
bass output, place your subwoofer in a
corner. To reduce output, move it away
from corners and back walls. Even slightly
moving the subwoofer can have a major
effect on bass response.
Connecting to Subwoofer Out
or Pre Out Terminals
Use this connection if your amplifier/
receiver has jacks labeled SUBWOOFER
OUT or PRE OUT. Do not use the PRE
OUT jacks if they are already connected by
cables or jumpers to your amplifier.
We recommend that you test the
subwoofer in different locations to
determine where the best balance is
between your satellite speakers (if used)
and subwoofer. We also recommend that
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1. Connect the PRO-SW220P’s LOW
LEVEL INPUT jacks to the amplifier/
receiver’s line sub out or pre out jacks
(or TV’s audio line out jacks).
HIGH LEVEL INPUT speaker terminals. Be
sure to connect the terminals in phase,
connecting positive (+) to positive and
negative (–) to negative. Wiring the
subwoofer with + to – causes reduced bass
performance. To match the subwoofer’s
polarity with your system’s polarity and
receive full bass response, slide the
PHASE switch to REV or NOM. Choose
the setting that provides the greatest bass
output.
2. Connect your satellite speakers (if
any) to the amplifier’s or receiver’s
output terminals as they would
normally be connected.
Notes:
• On some receivers/amplifiers, the
subwoofer out is a single jack. Use a
single phono cable (not supplied) to
connect the subwoofer jack to the L
input on the PRO-SW220P.
Connecting Speakers
You can connect your left and right
speakers to your amplifier/receiver (as
shown in “Connecting to Subwoofer Out
or Pre Out Terminals”), or to the PRO-
SW-220P’s HIGH LEVEL OUTPUT
speaker terminals (as shown above).
• When connecting to a TV, we
recommend using variable line output
jacks, which will allow the PRO-
SW220P’s volume to change with the
TV’s volume. Refer to your TV owner’s
manual. Also, you can connect to the
TV line out and then adjust the TV
volume up or down. If the subwoofer
volume changes with the TV volume,
then the TV line out is variable.
Note: The High Level Output is a pass-
through, and only works when using a
High Level Input.
However, if you use MEGACABLE or
any other high-quality, low-gauge speaker
wire, the terminals will be too small to
accommodate the wires.
Connecting to Speaker
Terminals
Connect the amplifier/receiver’s speaker
output terminals to the PRO-SW220P’s
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You need two pairs of speaker pins
(available at your local RadioShack store)
to make the connection.
receive a signal for about 11 minutes the
STANDBY indicator lights red.
Follow these steps to connect the wires to
each terminal using speaker pins.
1. Separate the conductors for a length
of about 2 inches on the end of each
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wire. Then strip /2 inch of insulation
from the ends of each conductor and
twist the wire ends.
2. Position each wire end between the
open barrel ends of the speaker pin.
To PRO-SW220P
ADJUSTING THE VOLUME
Once you have made all connections,
follow these steps to adjust the PRO-
SW220P’s volume.
1. Rotate VOLUME CONTROL to MIN.
From Left or Right Speaker
2. Turn on your amplifier/receiver and
another component (such as a radio,
cassette player, CD player, or
turntable).
3. Using a pair of pliers, crimp the open
barrel ends of the speaker pin to hold
the wire ends in place.
3. Begin playing an audio source (such
as a radio) and adjust the amplifier/
speaker’s overall volume to a
4. Plug the speaker pin into the proper
terminal on the PRO-SW220P.
comfortable level. Rotate VOLUME
CONTROL on the PRO-SW220P
clockwise a little at a time, until you
achieve a pleasing balance of bass
between the PRO-SW220P and the
main speakers (and satellite speakers,
if used). Bass output should not
overpower the main speakers, but
should blend across the entire musical
range.
CONNECTING TO POWER
Plug the PRO-SW220P’s AC power cord
into an AC outlet.The STANDBY indicator
lights green. If the subwoofer does not
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Once you have adjusted the PRO-
SW220P’s VOLUME CONTROL, use the
amplifier/receiver’s volume control to
control the speakers’ volume.
Care and Maintenance
Keep the PRO-SW220P dry; if it gets wet,
wipe it dry immediately. Use and store the
PRO-SW220P only in normal temperature
environments. Handle the PRO-SW220P
carefully; do not drop it. Keep the PRO-
SW220P away from dust and dirt, and
wipe it with a damp cloth occasionally to
keep it looking new.
ADJUSTING THE HIGH CUT
FREQUENCY
FREQUENCY HZ adjusts the level
(between 50 Hz and 200 Hz) at which the
subwoofer begins passing frequencies to
other speakers. This control’s setting
depends on the low frequency capabilities
of your satellite speakers (if used), speaker
placement, and other factors that affect
bass performance.
Modifying or tampering with the PRO-
SW220P’s internal components can cause
a malfunction and might invalidate its
warranty.
Caution: You might permanently damage
your speakers by cleaning them with a
vacuum cleaner. Use a feather duster or a
soft loose cloth instead.
While playing music, rotate FREQUENCY
HZ clockwise until the music sounds too
bass-heavy. Then rotate it
This subwoofer has been manufactured to
the specifications of RadioShack and is
covered by a limited warranty from
RadioShack. If your subwoofer is not
operating as it should, take it to your local
RadioShack store or call 1-800-THE-
SHACK for assistance.
counterclockwise until the bass sounds
more natural.
If the mid-bass sounds natural but you
want more low bass, rotate FREQUENCY
HZ counterclockwise a little, then rotate
the subwoofer’s VOLUME CONTROL
clockwise by about the same amount. This
increases low-bass output without
affecting the mid-bass output.
To reduce low-bass output without
affecting the mid-bass output, equally
rotate FREQUENCY HZ clockwise and the
subwoofer’s VOLUME CONTROL
counterclockwise.
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SPECIFICATIONS
Amplifier Output ....................................................... 200W RMS (4 Ohms @ 10% THD)
Amplifier Output .......................................................... 180W RMS (4 Ohms @ 1% THD)
Crossover ................................................................................ 50 Hz–200 Hz Adjustable
Frequency Response ................................................................................. 36 Hz–200 Hz
Power Voltage ........................................................................................ AC 120 V/60 Hz
Power Consumption .............................................................................................. 120W
Dimensions (HWD) ....................................... 16 x 16 x 16 Inches (407 x 407 x 407 mm)
(with feet and grill attached) ............ 1713/16 x 16 x 195/8 Inches (431.8 x 407 x 482.6 mm)
Weight ................................................................................................. 45 lb (20.412 kg)
Specifications are typical; individual units might vary. Specifications are subject to change
and improvement without notice.
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Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workman-
ship under normal use for one (1) year from the date of purchase from RadioShack company-owned
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-
dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING
THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED
IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED
HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RE-
SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-
CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-
TAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limita-
tion of incidental or consequential damages, so the above limitations or exclusions may not apply to
you.
In the event of a product defect during the warranty period, take the product and the RadioShack
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase
price. All replaced parts and products, and products on which a refund is made, become the prop-
erty of RadioShack. New or reconditioned parts and products may be used in the performance of
warranty service. Repaired or replaced parts and products are warranted for the remainder of the
original warranty period. You will be charged for repair or replacement of the product made after the
expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs
of product removal, installation, set-up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
We Service What We Sell
12/99
RadioShack
A Division of RadioShack Corporation
Fort Worth, Texas 76102
40-5031
Printed in USA
03/2001
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