Kenwood SW-505D, SW-305 User Manual
SW-305 ➔ PAGE 2 SW-505D ➔ PAGE 13
POWERED SUBWOOFER
INSTRUCTION MANUAL
KENWOOD CORPORATION
B61-1073-00 (EN)
Before applying power
Units are designed for operation as follows.
2
U.S.A. and Canada ...................................................................AC 120 V only
Caution : Read this page carefully to ensure safe operation.
SW-305 [EN]
Europe and U.K......................................................................... AC 230 V only
Safety precautions
WARNING :
TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, 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 PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO
THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE
LITERATURE ACCOMPANYING THE APPLIANCE.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER
(OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Before applying power
SW-305 [EN]
Introduction
Your choice of this product indicates that you are a devotee to excellence in sound reproduction.
We appreciate your patronage and take pride in the long tradition of
quality components that our company represents.
So that you can get the most out of your unit, we suggest that you
take the time to read through this manual before you hook up and
operate your system. This will acquaint you with operating features
and system-connection considerations so that your listening pleasure will be enhanced right from the start. You will notice that in all
aspects of planning, engineering, styling, operating convenience
and adaptability we have sought to anticipate your needs and desires.
Unpacking
Unpack the unit carefully and make sure that all accessories are put aside
so they will not be lost.
Examine the unit for any possibility of shipping damage. If your unit is
damaged or fails to operate, notify your dealer immediately. If your unit
was shipped to you directly, notify the shipping company without delay.
Only the consignee (the person or company receiving the unit) can file a
claim against the carrier for shipping damage.
We recommend that you retain the original carton and packing materials
for use should you transport or ship the unit in the future.
Keep this manual handy for future reference.
Accessories
Important Items
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Maintenance of the unit
When the front panel or case becomes dirty, wipe with a soft, dry
cloth. Do not use thinner, benzine, alcohol, etc. for these agents may
cause discoloration.
In regard to contact cleaner
Do not use contact cleaners because it could cause a malfunction.
Be specially careful not to use contact cleaners containing oil, for
they may deform the plastic component.
Pin-plug cord (1)
Contents
Caution : Read the pages marked carefully to ensure
safe operation.
Before applying power .............................................................. 2
Safety precautions................................................................ 2
Introduction ............................................................................ 3
Important Items ..................................................................... 3
IMPORTANT SAFEGUARDS....................................................... 4
Installation.................................................................................... 6
Connections.................................................................................. 7
Controls and indicators............................................................ 10
Sound adjustment...................................................................... 11
In case of difficulty ................................................................... 11
Specifications ............................................................................12
IMPORTANT SAFEGUARDS
Caution : Read this page carefully to ensure safe operation.
SW-305 [EN]
Please read all of the safety and operating instructions
before operating this appliance. Adhere to all warnings on the
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appliance and in the instruction manual. Follow all the safety and
operating instructions. These safety and operating instructions
should be retained for future reference.
1. Power sources – The appliance should be connected to a
power supply only of the type described in the instruction
manual or as marked on the appliance. If you are not sure of
the type of power supply to your home, consult your appliance
dealer or local power company. For appliances intended to
operate from battery power, or other sources, refer to the
instruction manual.
2. Power-cord protection – Power-supply cords should
be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, pay
particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the
appliance.
Never pull or stretch
the cord.
6. Temperature – The appliance may not function properly
if used at extremely low, or freezing temperatures. The
ideal ambient temperature is above +5°C (41°F).
7. Heat – The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or
other appliances (including amplifiers) that produce heat.
8. Electric shock – Care should be taken so that objects do
not fall and liquid is not spilled into the enclosure
through openings. If a metal objects, such as a hair pin
or a needle, comes into contact with the inside of this
appliance, a dangerous electric shock may result. For
families with children, never permit children to put
anything, especially metal, inside this appliance.
9. Enclosure removal – Never remove the enclosure. If
the internal parts are touched accidentally, a serious
electric shock might occur.
CAUTION – Polarization – This appliance may be
3.
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.
4. 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 appliance should be situated so
that its location or position does not interfere with its proper
ventilation.
To maintain good ventilation, do not put records or a table-cloth
on the appliance. Place the appliance at least 10 cm away from
the walls.
Do not use the appliance on a bed, sofa, rug or similar surface
that may block the ventilation openings. This appliance should
not be placed in a built-in installation such as a bookcase or rack
unless proper ventilation is provided or the manufacturer’s
instructions have been adhered to.
10.Magnetic fields – Keep the appliance away from sources
of magnetic fields such as TV sets, speaker systems,
radios, motorized toys or magnetized objects.
11.Cleaning – Unplug this appliance from the wall outlet
before cleaning. Do not use volatile solvents such as
alcohol, paint thinner, gasoline, or benzine, etc. to clean
the cabinet. Use a clean dry cloth.
12.Accessories – Do not place this 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. An appliance and cart
combination should be moved with care. Quick stops, excessive
force, and uneven surfaces may cause the appliance and cart
combination to overturn.
5. Water and moisture – The appliance should not be
used near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, etc.
Caution : Read this page carefully to ensure safe operation.
IMPORTANT SAFEGUARDS
SW-305 [EN]
13.Lightning – For added protection for this 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
surges.
14.Abnormal smell – If an abnormal smell or smoke is
detected, immediately turn the power OFF and unplug
the appliance from the wall outlet. Contact your dealer or
nearest service center.
15.Damage requiring service – The appliance should be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged.
B. Objects have fallen, or liquid has been spilled into
the appliance.
C. The appliance has been exposed to rain or water.
D. The appliance does not appear to operate normally
by following the instruction manual. Adjust only those controls
that are covered by the instruction manual 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. The appliance has been dropped, or the enclosure
damaged.
F. The appliance exhibits a marked change in performance.
18.Power lines – An outside antenna system should not be
located in the vicinity of overhead power lines or other electric
light or power circuits, or where it can fall into such power lines
or circuits. When installing an outside antenna system, extreme
care should be taken to keep from touching such power lines
or circuits as contact with them might be fatal.
19.AC outlets – Do not connect other audio equipment
with a power consumption larger than that specified to
the AC outlet on the rear panel. Never connect other
electrical appliances, such as an iron or toaster, to it to
prevent fire or electric shock.
20. Overloading – Do not overload wall outlets, extension cords,
or integral convenience receptacles as this can result in a risk
of fire or electric shock.
21. Attachment – Do not use attachments not recommended by
the appliance manufacturer as they may cause hazards.
22. Replacement parts – When replacement parts are required,
be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics
as the original parts. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
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16.Servicing – The user should not attempt to service the
appliance beyond that described in the instruction
manual. All other servicing should be referred to qualified
service personnel.
17.Outdoor antenna grounding – If an outside antenna is
connected to the appliance, be sure the antenna system
is grounded so as to provide some protection against
voltage surges and built up static charges. Article 810 of
the National Electrical Code ANSI/NFPA 70, provides
information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in
wire to an antenna discharge unit, size of grounding
conductors, location of antenna discharge unit,
connection to grounding electrodes, and requirements
for the grounding electrode. See Figure.
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL
ELECTRIC
SERVICE
EQUIPMENT
NEC – NATIONAL ELECTRICAL CODE
ELECTRICAL CODE
GROUND
CLAMPS
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMP
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
23. Safety check – Upon completion of any service or repairs to
this appliance, ask the service technician to perform safety
checks to determine that the appliance is in proper operating
condition.
Notes:
1. Item 3 is not required except for grounded or polarized equipment.
2. Item 17 and 18 are not required except for units provided with
antenna terminals.
3. Item 17 complies with UL in the U.S.A.
Installation
SW-305 [EN]
6
The Subwoofer is a virtually omnidirectional speaker, so it can be installed in almost any location. For example, the Subwoofer can be installed next to
the component system (consisting of an amplifier, tuner, cassette deck, etc.), or in a corner of the room, etc. The Subwoofer’s deep-bass reproduction
characteristics are richest when the Subwoofer is installed in a corner or near a wall. Since the low-bass component in music is usually monaural, only
one Subwoofer is necessary to obtain a sufficient stereo effect when used in combination with a stereo music system.
Wall
Near the wall
Near the corner
Far from the wall
Near the wall
Wall
Speaker installation position, viewed from above
Near the corner
Wall
Except for U.S.A. and Canada
CAUTION
Be sure to adhere followings. Or proper ventilation will
be blocked causing damage or fire hazard.
÷ Do not place any objects impairing heat radiation onto
the top of unit.
÷ Leave a space around the unit (from the largest out-
side dimension including projection) equal or greater
than, shown below.
Top panel : 50 cm
Side panel : 10 cm
Back panel : 10 cm
Howling
If the Subwoofer is installed near an analog record turntable, a
howling sound may be generated. If this occurs, place the Subwoofer
farther away from the turntable or reduce the Subwoofer volume (By
rotating the VOLUME CONTROL counterclock-wise). The howling
phenomenon may also occur due to cross interference with a cassette deck, compact disc player, or Laserdisc player, although this is
very rare. If sound or picture seems to be distorted due to this reason,
place the Subwoofer farther away from other components or reduce
its volume.
Far from the wall
Sound Pressure Level
Frequency
For U.S.A. and Canada
CAUTION
Be sure to adhere followings. Or proper ventilation will
be blocked causing damage or fire hazard.
÷ Do not place any objects impairing heat radiation onto
the top of unit.
Operation near a TV
If the Subwoofer is installed too close to a TV, color irregularities may
be observed on the TV screen. If such irregularities occur, switch the
power of the TV to OFF and then switch it ON again after waiting for
a period of 15 to 30 minutes. The influence of the Subwoofer on the
TV picture may be improved by self-demagnetization of the TV set. If
the color irregularities still persist, move the Subwoofer farther away
from the TV.
Connections
Input/output terminals
SW-305 [EN]
7
LINE
L
R
(MONO)
INPUT
+
+
L L
R
R
-
-
R
R
R
R
+-+
FROM
TO
AMPLIFIER
SPEAKERS
INPUT
OUTPUT
Power cord
To WALL AC OUTLET
(MONO)
INPUT
+
R
-
R
+
FROM
AMPLIFIER
INPUT
LINE
LR
+
R
LL
-
-
R
RR
+
TO
SPEAKERS
OUTPUT
3
12
1 FROM AMPLIFIER INPUT terminals
These terminals are used to connect the FRONT SPEAKER terminals of the amplifier to this unit.
2 TO SPEAKERS OUTPUT terminals
3 LINE jacks (RCA-type pin-plug)
These jacks are used to connect the Subwoofer Pre-Out jacks of
the amplifier.
If the amplifier is equipped with a Subwoofer Pre-Out jack
Before connection: Set the POWER switches of the amplifier and Subwoofer to OFF. If they are connected with the
POWER switch(es) left ON, one or both components may be damaged.
Speaker cord (Commercially available parts)
Speaker terminals
(Amplifier or Receiver)
SUB WOOFER PRE OUT
FRONT SPEAKERS CENTER SPEAKERS
+
–
SUBWOOFER
PRE OUT
(MONO)
R (MONO)
SW-305
SUBWOOFER
LINE
L
R
(MONO)
INPUT
+
L L
R
-
R
R
FROM
TO
AMPLIFIER
SPEAKERS
INPUT
OUTPUT
LINE
R L
INPUT
+
R
-
R
R
+-+
–+ –+
Front speaker (R) Front speaker (L)
Connections
SW-305 [EN]
8
If the amplifier is not equipped with a Subwoofer Pre-Out jack or if two subwoofers are to be used
Before connection: Set the POWER switches of the amplifier and Subwoofer to OFF. If they are connected with the
POWER switch(es) left ON, one or both components may be damaged.
When connecting the Subwoofer to the amplifier, be sure to always connect the “+” terminals to “+” terminals and the “–”
terminals to “–” terminals. If terminals are connected incorrectly, the amplifier may be damaged.
Note
NoteNote
Speaker cords are not supplied, Please use a speaker cords with thick conductor.
Using one subwoofer
Speaker cord (Commercially available parts)
FRONT SPEAKERS CENTER SPEAKERS
+
–
Speaker terminals
(Amplifier or Receiver)
Using two subwoofers
+
L L
R
-
-
R
R R
+
FROM
TO
AMPLIFIER
R
(MONO)
INPUT
+
L L
R
-
R
R
FROM
AMPLIFIER
INPUT
LINE
L
+
R
-
R
R
+-+
TO
SPEAKERS
OUTPUT
INPUT
SPEAKERS
OUTPUT
SPEAKERS
Push
TO
OUTPUT
+
R
-
-
R
+
CAUTION
The front speakers
connected with the
Subwoofer should
3
Insert the
conductor
4
Release
have the impedance
specified by the amplifier or receiver in
use.
LINE
R
(MONO)
INPUT
+
L L
R
-
R
R
FROM
AMPLIFIER
INPUT
+
L L
R
-
-
R
R R
+
FROM
AMPLIFIER
INPUT
L
+
R
-
R
R
+-+
TO
SPEAKERS
OUTPUT
1
Twist wire’s
conductor
2
SW-305 SUBWOOFER
Speaker cord
(Commercially
available parts)
–+
Front speaker (R)
Speaker cord (Commercially available parts)
+
R
-
-
R
+
Speaker terminals
FRONT SPEAKERS CENTER SPEAKERS
+
(Amplifier or Receiver)
–
+
L L
R
-
-
R
R R
+
FROM
AMPLIFIER
SPEAKERS
INPUT
OUTPUT
LINE
L
R
(MONO)
INPUT
+
L L
R
-
R
R
FROM
TO
AMPLIFIER
SPEAKERS
INPUT
OUTPUT
TO
+
R
-
R
R
+-+
–+
Front speaker (L)
+
R
-
-
R
+
–+ –+
SW-305
SUBWOOFER
(Right channel)
Front speaker (R)
12
Twist wire’s
conductor
Push
3
Insert the conductor
4
Release
SW-305
SUBWOOFER
(Left channel)
Front speaker (L)
CAUTION
The front speakers connected with the Subwoofer should have the impedance specified by the amplifier or receiver in use.
When the amplifier has two stereo speaker output circuits which can output signals simultaneously, the front speakers do not have
to be connected through the subwoofer(s) but can be connected directly to the amplifier, whether the number of subwoofers used
Note
NoteNote
is one or two.
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