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®
Welcome to the Klipsch ProMedia
SWS subwoofer system.
Signal Connections
SETUP
The Klipsch ProMedia SWS subwoofer
can be used with any ProMedia® or
multimedia speaker system. It can also
be used to supplement the bass output
from a TV set or home audio system
that has appropriate line-level output
jacks, although the signal connections
are different. Connections are also dif-
ferent when the SWS is used with
Klipsch ProMedia speaker systems that
have the SWS-Link subwoofer output
jacks. Each type of signal connection is
described and diagramed separately
later, followed by directions on con-
necting the volume-control module,
attaching multiple SWS subwoofers,
and placement and setup.
Multimedia Speaker System
Your SWS subwoofer will add a new
dimension to your enjoyment of your
multimedia sound system. We have
designed the SWS subwoofers to work
with almost any type of speaker sys-
tem, from stereo to 5.1 surround. In
this manual, we will explain the three
basic connection scenarios for your
SWS subwoofer, based on the type of
system you will be using it with, and
how to operate it in each of them.
(Figs. 1 & 2)
The SWS subwoofer allows pass
through connection of as many as six
channels from your computer’s sound
card to your multimedia speaker sys-
tem, using standard stereo minijack
connectors. The subwoofer picks up
and reproduces low frequencies from
the signals on all these channels as
they pass through it on the way to the
main speaker system.
IMPORTANT NOTE:
Before You Begin!
On the subwoofer’s back panel are
three input/output minijack pairs: one
green pair for left and right front chan-
nels (FRONT L/R) , a second black
pair for left and right surround chan-
nels (REAR L/R), and a third orange
pair for center channel and subwoofer
(CENTER/SUB). If you have a two-
speaker system, you will use only the
first pair. If you have a three-piece
speaker system, you will use the first
pair, and if you have a 4.1 system,
you will use the second pair as well.
If you have a 5.1-channel speaker
system, you will use all three pairs.
Do not plug in the SWS’s power cord
until all other wiring is completed.
Make sure that all other parts of the
system, including the computer, are
turned off or disconnected from power
while you are installing the SWS. Be
especially careful not to connect or dis-
connect any signal cables while power
is applied. Failure to observe this cau-
tion may result in loud hums, buzzes,
or pops that will at the very least be
startling and annoying and that in the
extreme may damage your speakers.
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1. Unplug your multimedia speaker
system from your computer’s sound
card or sound outputs, making careful
note of which output jack is associated
with each speaker connection. Usually
the plugs and jacks will be color-coded
GREEN for front left/right and BLACK
for surrounds (rear), with the front jack
directly above the surround jack on the
back of the sound card. Placement and
color coding of the jack used for cen-
ter/subwoofer (center/bass) output, if
any, varies from card to card; Klipsch
uses ORANGE miniplugs and mini-
jacks for this connection.
Klipsch ProMedia Speaker System
with Subwoofer Outputs (Fig. 2)
The directions in this section apply to
Klipsch ProMedia multimedia speaker
systems which have the SWS-link sub-
woofer output jacks. For earlier
ProMedia models, follow the instruc-
tions in the previous section.
black) inner ring, the other with a red
inner ring. (RCA jacks with yellow
inner rings are for video.) Use an
audio interconnect cable with RCA
plugs at each end (one is supplied with
the SWS) to connect one of these out-
put jacks to the RCA INPUT jack on the
SWS subwoofer’s back panel.
On the SWS subwoofer’s back panel is
an RCA (phono) INPUT jack. Use an
RCA audio interconnect cable (one is
supplied with the SWS) to connect this
input to the RCA SUBWOOFER OUT-
PUT (SWS-link) jack on your ProMedia
speaker system. This is the only signal
connection you need to make unless
you are using multiple SWS sub-
Even if the TV’s audio output is stereo,
use only one of the two jacks; this will
not impair performance. If the TV has
one set of audio outputs labeled
"Fixed" or "Fixed Level" and another
labeled "Variable" or "Variable Level,"
make sure you use one of the variable-
level jacks.
2. Plug the cables from your speaker
system into the corresponding OUTPUT
minijacks on the SWS subwoofer’s
back panel. The cable for the front left
and right speakers plugs into the
GREEN OUTPUT jack. The cable for
surround speakers (if any) plugs into
the BLACK OUTPUT jack. The cable for
a center speaker and a separate bass
module (if any) plugs into the
woofers (see “Multiple Subwoofers”).
TV Set (Fig. 3)
An SWS subwoofer can add a solid
bass foundation to the sound from a
TV set’s built-in speakers, if the TV has
a line-level audio output jack. You will
need to make a single connection to
the RCA (phono) INPUT jack on the
SWS subwoofer’s back panel.
ORANGE OUTPUT jack.
3. Use the cables supplied with the
SWS to connect its INPUT minijacks to
your computer’s sound card. Attach the
cable with a GREEN miniplug at each
end to the front left/right sound card
output and the SWS subwoofer’s
FRONT L/R INPUT. Plug the cable with
BLACK miniplugs into the surround
(rear) sound card output (if any) and
the SWS subwoofer’s REAR L/R INPUT.
Plug the cable with ORANGE mini-
plugs into the center/ subwoofer (cen-
ter/bass) sound card output (if any)
and the SWS subwoofer’s
CENTER/SUB INPUT. Your input con-
nections to and output connections
from the SWS should match. For
example, if the REAR L/R output is
connected, so should the REAR L/R
input. But if the REAR L/R output is not
connected, neither should the REAR
L/R input.
Most TV sets sold today have one
(mono) or two (stereo) audio line out-
put jacks on their back panels. A
mono audio output will be a single
RCA (phono) jack, usually with a black
inner ring for identification. A stereo
audio output will be two RCA jacks,
one with a white (or occasionally
Home Audio System (Fig. 4)
You can connect the SWS to any home
audio system that has a subwoofer
output or preamp outputs for its front
left and right channels. Just use an
audio interconnect cable with RCA
plugs at each end (one is supplied with
the SWS) to connect one of these out-
put jacks to the RCA INPUT jack on the
SWS subwoofer’s back panel.
If the system has both subwoofer and
preamp output jacks, use the sub-
woofer output. And if the subwoofer
output is on an A/V receiver or ampli-
fier, make sure you go into its bass-
management setup menu and set
Subwoofer to "On" or "Yes."
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Caution: In actual use, stacking more than
three units high is not recommended.
®
ProMedia Subwoofer System
SWS
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Volume Control Connection
(Fig. 5)
The SWS comes with an
external remote volume-
control module for
adjusting subwoofer level.
You can place it wherever is
convenient. Just run the cable from it
back to the SWS and plug it into the
back-panel minijack labeled VOLUME.
In the passthrough configuration used
with most multimedia speaker systems,
the volume controls on the SWS and
your main speakers are independent.
That is, changing the volume on one
does not affect the volume on the
other. So if you change the volume set-
ting on the main speakers, you must
readjust the SWS volume control as
well in order to maintain the same
tonal balance. For this reason, it is
usually more convenient to use the
SWS volume control only to adjust the
balance between it and the main
speakers and not to use the volume
control on the main speakers at all
once you have completed initial setup.
Instead, use the software volume con-
trol in your computer’s operating sys-
tem as the master volume control.
Figure 5
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Power Switch Options (Fig.5)
Phase Switch 0/180 (Fig.5)
®
ProMedia Subwoofer System
On the SWS subwoofer’s back panel is
a power switch with three positions:
OFF, ON, and AUTO-ON. If you select
AUTO-ON, the SWS will turn itself on
when it detects an audio signal at one
of its inputs and off after a period has
elapsed with no input signal. You
probably will want to leave the switch
set to AUTO-ON most of the time.
This control is used to acoustically
match the subwoofer’s output to your
main speakers. You want to select one
of the two positions, either 0 or 108,
in which your sub has more output at
your listening position.
SWS
You’re done! Enjoy your new Klipsch
ProMedia SWS subwoofer.
Crossover-Frequency and
Level Adjustment (Fig.5)
On the back of SWS is a switch
labeled FREQUENCY, which adjusts
the crossover frequency between 60
and 90 Hz. Only signals below the
selected frequency will be reproduced
by the SWS. You will need to adjust
the FREQUENCY control and the SWS
volume control to achieve a pleasing
balance of bass to higher sounds.
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More Fun with More Subs
Multiple subwoofers can be used to increase
sound pressure over a single unit, and efficient
use of room boundaries can additionally increase
sound pressure.
Like any other type of engineering, the art and
science of loudspeaker design often revolves
around overcoming obstacles thrown up by
nature. Every once in a while, however, physics
turns out to be our friend. Subwoofers are a case
in point.
At the frequencies where subwoofers operate, you
can get fairly astonishing increases in maximum bass
output by using multiple subwoofers, placing them
against room boundaries (walls, floor), or both. At
the very lowest frequencies, you even get some boost
just from having the subwoofer in a room.
This last phenomenon is known as "room gain,"
and you actually get more of it in small rooms
than in large ones. Below a frequency determined
by the room volume, a speaker’s output will be
progressively reinforced at a rate close to that at
which its response naturally rolls off below its
lower limit. So a subwoofer that has flat response
to 30 Hz outdoors would hold up strongly to
below 20 Hz in a typical living room. In a typical
bedroom or small office, the boost might begin at
40 or 50 Hz, which dovetails nicely with the
capabilities of the smaller speakers and sub-
woofers that would tend to be used in such set-
tings. Make the room even smaller — well, if you
have been wondering how people get so much
bass out of their cars, here is your answer! A
freer lunch you will not find.
Controls all subs downstream 444444
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Room boundaries work a similar sort of magic,
but uniformly over a fairly wide frequency range.
Move dual subwoofers from the middle of a room
to up against a wall, and they will play 12-dB
louder than a single sub (Fig. 1). Slide the two
subs inot a corner fo another 6-dB, yields +18dB
(Fig. 2). What does that mean? A 1-dB (decibel)
volume change is about the smallest we can rec-
ognize as a level change. To hear a really obvious
difference, you need about a 3-dB change. And
to get a subjective doubling you need about a 10-
dB level boost. So the gain achieved by moving a
subwoofer into a corner is a pretty big deal.
Which brings us to the glory of multiple sub-
woofers. Put a second subwoofer right next to your
first one, operating at the same level, and you get
about a 6-dB increase in total acoustic output.
That’s equivalent to increasing the amplifier power
by four times! Double the number of subwoofers
again, and you get another 6-dB increase (Fig. 3).
That’s equivalent to another quadrupling of amplifi-
er power, or sixteen times the original. And so on.
It’s the ultimate scalable system.
Combining all these tricks can yield quite formida-
ble bass from very compact subwoofers, right
down to the very lowest audible frequencies. Over
time, you can build the sonic equivalent of a much
larger subwoofer just by daisy-chaining additional
SWS subs into your system (Fig. 4). Not quite a
free lunch, but certainly a very economical one.
Warning
Do not vertically stack more than three
SWS units!
®
ProMedia Subwoofer System
SWS
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U.S. AND CANADA
REPAIRS OR REPLACEMENTS AS PRO-
VIDED UNDER THIS WARRANTY ARE
THE EXCLUSIVE REMEDY OF THE
CONSUMER. KLIPSCH SHALL NOT BE
LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES FOR
BREACH OF ANY EXPRESS OR
TO OBTAIN WARRANTY SERVICE,
PLEASE FOLLOW THESE DIRECTIONS:
KLIPSCH, LLC ("KLIPSCH") warrants
this product to be free from defects in
materials and workmanship (subject to
the terms set forth below) for a period
of one (1) year from the date of pur-
chase. During the warranty period,
KLIPSCH will repair or replace (at
KLIPSCH's option) this product or any
defective parts. Proof of purchase in
the form of a bill of sale or receipted
invoice, which is evidence that this
product is within the warranty period,
must be presented or included to
obtain warranty service.
1. If you purchased this product from a
retail store, please return this prod-
uct to such store in its original pack-
aging along with proof of purchase.
2. If you purchased this product from a
computer manufacturer, please con-
tact that manufacturer.
3. For purchases made through
KLIPSCH Customer Service at
IMPLIED WARRANTY ON THIS
PRODUCT. EXCEPT TO THE EXTENT
PROHIBITED BY LAW, THIS WARRAN-
TY IS EXCLUSIVE AND IN LIEU OF ALL
OTHER EXPRESS AND IMPLIED WAR-
RANTIES WHATSOEVER, INCLUDING
BUT NOT LIMITED TO, THE WARRAN-
TY OF MERCHANTABILITY AND FIT-
NESS FOR A PRACTICAL PURPOSE.
1-888-554-5665. Product may
only be returned to KLIPSCH after a
Return Authorization number has
been obtained from KLIPSCH.
This warranty does not cover damage
due to misuse, abuse, negligence, acts
of God, accident, commercial use or
modification of, or to any part of this
product. This warranty does not cover
damage due to improper operation,
maintenance or installation, or
attempted repair by anyone other than
KLIPSCH or someone authorized by
KLIPSCH to do warranty work. Any
unauthorized repairs will void this
warranty. This warranty does not cover
product sold AS IS or WITH ALL
FAULTS. This warranty is invalid if the
factory applied serial number or date
stamp has been altered or removed
from this product.
Some states do not allow the exclusion
or limitation of incidental or conse-
quential damages or implied war-
ranties so the above exclusions may
not apply to every customer. This war-
ranty gives you specific legal rights,
and you may have other rights which
vary from State to State.
Returned product must be shipped,
freight prepaid to KLIPSCH in either its
original packaging or packaging
affording an equal degree of protec-
tion, along with proof of purchase.
OUTSIDE THE U.S. AND CANADA
The warranty on this product if it is
sold to a consumer outside of the
United States or Canada shall comply
with applicable law and shall be the
sole responsibility of the distributor that
supplied this product. To obtain any
applicable warranty service, please
contact the dealer from which you pur-
chased this product, or the distributor
that supplied this product.
This Warranty is only valid for the
original purchaser and will automati -
cally terminate prior to expiration
if this product is sold or otherwise
transferred to another party .
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ProMedia ® Subwoofer System
SWS
CUT ALONG DOTTED LINE AND MAIL
NOW REGISTER ONLINE AT WWW.KLIPSCH.COM!
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Model: ProMedia® SWS
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®
ProMedia Subwoofer System
SWS
Make sure you return your warranty
card so that we may keep you up-to-
date on new Klipsch products and pr o-
motions. As always, if you have any
questions, contact your local authorized
Klipsch dealer or Klipsch Customer
Service at 1-888-554-5665
FOR YOUR RECORDS:
®
Model: ProMedia SWS
Date Purchased:
3502 WOODVIEW TRACE, SUITE 200
INDIANAPOLIS, IN 46268-1104
.
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1 800 KLIPSCH
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COPYRIGHT ©2002 KLIPSCH AUDIO TECHNOLOGIES
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