Thank youfor your purchase of the Onkyo powered subwoofer.
Please read this manual thoroughly before using it.
Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new
Please retain this manual for future reference.
PORTABLE CART WARNING
1. Read Instructions All the safety and operating instructions
should be read before the appliance is operated.
2. Retain Instructions The safety and operating instructions
should be retained for future reference.
3. Heed Warnings All warnings on the appliance and in the
operating instructions should be adhered to.
4. Follow Instructions All operating and use instructions
should be followed.
5. Cleaning Unplug the appliance from the wall outlet before
cleaning. The appliance should be cleaned only as recom-
mended by the manufacturer.
6. Attachments Do not use attachments not recommended
by the appliance manufacturer as they may cause hazards.
7. Water and Moisture Do not use the appliance near water
for example, near a bath tub, wash bowl, kitchen sink, or
laundry tub; in a wet basement; or near a swimming pool;
and the like.
8. Accessories Do not place the appliance on an unstable
cart, stand, tripod, bracket, or table.The appliance may fall,
causing serious injury to a child or adult, and serious damage
to the appliance. Use only with a cart, stand, tripod, bracket,
or table recommended by the manufacturer, or sold with the
appliance. Any mounting of the appliance should follow the
manufacturer's instructions, and should use a mounting
accessory recommended by the manufacturer.
9. An appliance and cart
combination should be moved
with care. Quick stops,
excessive force, and uneven
surfaces may cause the
appliance and cart combina-
tion to overturn.
10. Ventilation Slots and openings in the cabinet are provided
for ventilation and to ensure reliable operation of the
appliance and to protect it from overheating, and these
openings must not be blocked or covered. The openings
should never be blocked by placing the appliance on a bed,
sofa, rug, or other similar surface. The appliance should not
be placed in a builtin installation such as a bookcase or rack
unless proper ventilation is provided. There should be free
space of at least 20 cm (8 in.) and an opening behind the
11. Power Sources The appliance should be operated only
from the type of power source indicated on the marking label.
If you are not sure of the type of power supply to your home,
consult your appliance dealer or local power company.
12. Grounding or Polarization The appliance may be
equipped with a polarized alternating current line plug (a plug
having one blade wider than the other). This plug will fit into
the power outlet only one way. This is a safety feature. If you
are unable to insert the plug fully into the outlet, try reversing
the plug. If the plug should still fail to fit, contact your
electrician to replace your obsolete outlet. Do not defeat the
safety purpose of the polarized plug.
13. Power-Cord Protection Powersupply cords should be
routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
point where they exit from the appliance.
14. Lightning For added protection for the appliance during a
lightning storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet and
disconnect the antenna or cable system. This will prevent
damage to the appliance due to lightning and power-line
15. Overloading Do not overload wall outlets, extension cords,
or integral convenience receptacles as this can result in a
risk of fire or electric shock.
16. Object and Liquid Entry Never push objects of any kind
into the appliance through openings as they may touch
dangerous voltage points or short-out parts that could result
in a fire or electric shock. Never spill liquid of any kind on the
17. Servicing Do not attempt to service the appliance yourself
as opening or removing covers may expose you to danger-
ous voltage or other hazards. Refer all servicing to qualified
18. Damage Requiring Service Unplug the appliance form the
wall outlet and refer servicing to qualified service personnel
under the followingconditions:
A. When the power-supply cord or plug is damaged,
B. If liquid has been spilled, or objects have fallen into the
C. If the appliance has been exposed to rain or water,
If the appliance does not operate normally by following the
operating instructions. Adjust only those controls that are
covered by the operating instructions as an improper
adjustment of other controls may result in damage and will
often require extensive work by a qualified technician to
restore the appliance to its normal operation,
E. If the appliance has been dropped or damaged in any way,
When the appliance exhibits a distinct change in perform-
ance this indicates a need for service.
19. Replacement Parts When replacement parts are required,
be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteris-
tics as the original part. Unauthorized substitutions may
result in fire, electric shock, or other hazards.
20. Safety Check Upon completion of any service or repairs to
the appliance, ask the service technician to perform safety
checks to determine that the appliance is in proper operation
21. Wall or Ceiling Mounting The appliance should be
mounted to a wall or ceiling only as recommended by the
22. Heat The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR
BACK). NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED
· The lightning flash with arrowhead symbol, within an equilateral tri-
angle, is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to per-
· The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and mainte-
nance (servicing) instructions in the literature accompanying the
1. Warranty card
You can find the serial number on the rear panel of this
unit. In case of warranty claim, please report this number.
2. Recording Copyright
Recording of copyrighted material for other than
personal use is illegal without permission of the
3. AC Fuse
The fuse is located inside the chassis and is not user-
If power does not come on, contact your Onkyo
authorized service station.
From time to time you should wipe off the front and
rear panels and the cabinet with a soft cloth. For
heavier dirt, dampen a soft cloth in a weak solution of
mild detergent and water, wring it out dry, and wipe off
the dirt. Following this, dry immediately with a clean
cloth. Do not use rough material, thinners, alcohol or
other chemical solvents or cloths since these may
damage the finish or remove the panel lettering.
BEFORE PLUGGING IN THE UNIT FOR THE FIRST
TIME, READ THE FOLLOWING SECTION
· The voltage of the available power supply differs
according to country or region. Be sure that the
power supply voltage of the area where this unit will
be used meets the required voltage (e.g., AC230V
50Hz or AC120V 60Hz) written on the rear panel.
· Models Equipped with a Voltage Selector
Worldwide models are equipped with a voltage
selector to conform to local power supplies. Be sure
to set this switch to match the voltage of the power
supply in your area before plugging in the unit.
Setting the voltage selector
Setting the voltage selector
1. Determine the proper voltage for your
area: 220-230V or 120V.
2. If the preset voltage is not proper for
your area, insert a screwdriver into the
groove in the switch. Slide the switch
all the way to the lower (120V) or to
the upper (220-230V) whichever is
Control positions and names
This subwoofer system is equipped with a
built-in amplifier solely for the reproduction of
the superbass range.
With the built-in left-right mixing circuit and
cut-off filter, you can just connect the unit to
your existing system powerful bass
A Speaker-level input terminals
(INPUT FROM AMP/RECEIVER)
Connect these input terminals to the speaker output
terminals of your amplifier or receiver.
B Speaker-level output terminals
(OUTPUT TO SPEAKERS)
The speaker-level signal to the front speakers is output
from these terminals.
C Low-level input jacks (LINE INPUT)
Connect these jacks to the LINE OUT jacks of the
D Auto standby switch (AUTO STANDBY)
This switch is used to turn on and off the auto standby
ON: This activates the auto standby function.
If a constant level signal is not received from the
amplifier (or receiver) over a period of a few minutes,
the SKW-205 automatically enters the standby state. If
a constant level signal is later received from the
amplifier (or receiver), the power is automatically
turned back on.
OFF: Deactivates the auto standby function.
· The auto standby function operates on the existence
or absence of a constant level input signal. If the
auto standby function does not operate properly, try
slightly increasing (or decreasing) the output level of
the amplifier or receiver. (Note that output levels of
some amplifiers and receivers cannot be adjusted.
For more details regarding your components, refer to
the instruction manual supplied with them.)
· If noise from peripheral components causes the
incorrect operation of the auto standby function, or if
outputting low volumes (i.e., during the nighttime)
causes the auto standby function to activate, turn off
the auto standby function.
· The auto standby function only operates while the
power switch for the SKW-205 is turned on.
1 Power switch (POWER) and indicator
Pressing this button turns the power on (the indicator
lights). Pressing the button again turns the power off
(the indicator goes out).
Unit is in standby mode
Unit is in operation
2 Mode selector switch (LISTENING MODE)
Selecting the MOVIE or MUSIC position provides the
optimal frequency characteristics for reproducing
movie soundtracks or music, respectively. Of course,
you can enjoy movie soundtracks and music in either
3 Output level adjusting knob (OUTPUT LEVEL)
Use this knob to adjust the output level of the
4 Frequency adjusting knob (FREQUENCY)
Use this knob to select the high-frequency range at
which you wish to cut off the signal to the subwoofer.
You can select any frequency between 50 Hz and 200
Hz depending on the characteristics of the speaker
system being used with the SKW-205.
To AC outlet
Connection to receiver's (amplifier's) speaker terminals
1. Using the supplied speaker cables and speaker cables
that came with your speakers, connect the SKW-205
speaker-level input (INPUT FROM AMP/ RECEIVER)
terminals and the amplifier's speaker terminals.
2. Connect the Right and Left speakers to the SKW-205
speaker-level output (OUTPUT TO SPEAKERS)
· When connecting the speaker cables, be sure not to
mistake the (+) and (-) and the L (left) and R (left). If
the speaker cables are connecting incorrectly, there
will be a loss of fidelity in the bass sound ranges.
· The speakers connected to the SKW-205 speaker-
level output (OUTPUT TO SPEAKERS) terminals must
have an impedance equal to or greater than the rating
indicated on the amplifier connected to the speaker-
level input (INPUT FROM AMP/ RECEIVER) terminals.
Otherwise, amplifier damage may occur.
For safety, be sure to turn off the power of this unit and all other system components before connecting or disconnecting
When used in combination with an AV amplifier
When using the SKW-205 in conjunction with AV amplifiers and receivers with surround capability, be sure to connect the
SKW-205 to the subwoofer preout terminal (SUBWOOFER PREOUT) using the supplied pin cable. If connected using speaker
cable, depending on the amplifier or receiver settings, the bass signals may be cut out resulting in decreased fidelity in the
lower bass sounds.
For more details regarding proper connecting procedures, refer to the instruction manual supplied with your amplifier or
If your receiver (amplifier) is equipped with a monaural
subwoofer jack, connect it to the SKW-205 Right or Left
low-level (LINE INPUT) jack.
With an ordinary preamplifier having two output chan-
nels, connect both the Right and Left jacks.
Connection with amplifier's special subwoofer jack
Connection with a preamplifier
Amplifier with subwoofer terminal
To power amplifier
Connecting the speaker cables
1. Press the lever of the speaker output terminal, fully
insert the twisted core wires into the terminal hole, and
then release the lever.
2. Pull the speaker cable lightly to ensure that it is
· When you have connected the speaker cables, make
sure that the core wires are not in contact with other
terminals or metallic parts of the unit.
· Do not use BTL (Balanced Transformer-Less) type
amplifiers. Using a BTL amplifier may cause damage
to both the amplifier and the subwoofer. Ordinary
amplifiers are not BTL amplifiers. For details, see the
amplifier's instruction manual.