SL-107_Chi.book Page 1 Tuesday, September 30, 2003 2:43 PM
Contents
Powered Subwoofer
English ................ En-1
SL-107
Instruction Manual
Thank you for purchasing an Onkyo powered subwoofer.
Please read this manual thoroughly before using the unit.
Following the instructions in this manual will enable you
to obtain optimum performance and listening enjoyment
from your new powered subwoofer.
Please retain this manual for future reference.
En
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Precautions
1. Recording Copyright
6. Color
Unless it’s for personal use only, recording copyrighted
material is illegal without the permission of the copy-
right holder.
In catalogs and on packaging, the letter added to the end
of the product name indicates the color of the SL-107.
Specifications and operation are the same regardless of
color.
2. AC Fuse
7. Precaution on use
The AC fuse inside the SL-107 is not user-serviceable.
If you cannot turn on the SL-107, contact your Onkyo
dealer.
If the following abnormal signals are fed to the speaker,
however, an overcurrent may flow in the internal cir-
cuits, causing burning or breakage of the wires:
1. Special test signals produced by audio checking
CD, etc.
3. Care
Occasionally you should dust the SL-107 all over with a
soft cloth. For stubborn stains, use a soft cloth damp-
ened with a weak solution of mild detergent and water.
Dry the SL-107 immediately afterwards with a clean
cloth. Don’t use abrasive cloths, thinners, alcohol, or
other chemical solvents, because they may damage the
finish or remove the panel lettering.
2. Sound produced when connecting or disconnecting
audio connection cables
3. Feedback when a microphone is used
4. Abnormal sound produced when bass-range signals
are excessively boosted by the amplifier’s (or
receiver’s) tone controls, a graphic equalizer, or a
source with an abnormally boosted bass range.
This state, called “rattling,” occurs when the signal
is beyond the driver’s reproduction capacity.
Although it is not a sign of damage, decrease the
speaker output level to prevent damage to the driver.
4. Power
WARNING
BEFORE PLUGGING IN THE UNIT FOR THE
FIRST TIME, READ THE FOLLOWING SECTION
CAREFULLY.
AC outlet voltages vary from country to country. Make
sure that the voltage in your area meets the voltage
requirements printed on the SL-107’s rear panel (AC
220–230 V, 50/60 Hz).
5. Placement
• The enclosure is made of wood and is therefore sensi-
tive to extreme temperatures and humidity. Avoid
placing the unit in locations subject to direct sunlight
or in humid places, such as near an air conditioner,
bathroom or kitchen, as well as in locations subject to
soot or steam, such as near a kitchen table or humidi-
fier. Otherwise, damage may occur.
• Keep water or other liquids away from the unit. If
water is spilled into the unit, not only the unit but also
the connected amplifier (or receiver) may be dam-
aged.
• Place the unit on a level and rigid surface free from
vibration.
• Four slip-proof spacers are provided with the SL-107.
If the SL-107 is to be placed on flooring or other sim-
ilar surfaces, attach these spacers to the bottom sur-
face at the corners. This will not only prevent
scratching, but also provide a stable footing.
However, note that depending on the surface, the
spacers may leave markings.
• This unit is designed to be used in an upright vertical
position only. Do not use it in a horizontal or tilted
position.
• If the unit is used near a turntable or CD player, feed-
back or skipping of sound may occur. To prevent this,
move the unit away from the turntable or CD player
or otherwise lower the unit’s output level.
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Features
Contents
• 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 simply connect the unit
to your existing system to enjoy powerful
bass reproduction.
Important Safety Instructions....... 1
Precautions...................................... 2
Features ........................................... 3
Supplied Accessories....................... 3
Controls ........................................... 4
Connections..................................... 5
Subwoofer effects............................ 7
Adjustments .................................... 7
Placement ........................................ 7
Troubleshooting .............................. 8
Specifications................................... 8
Supplied Accessories
• Pin connector cable
• Cork spacers (4 pcs.)
Using cork spacers with SL-107
We recommend using the provided cork spacers to
achieve the best possible sound from your speaker.
The cork spacers prevent the speaker from moving,
providing a more stable setup.
Cork spacer
Bottom of the
SL-107
Declaration of Conformity
We,
ONKYO EUROPE
ELECTRONICS GmbH
LIEGNITZERSTRASSE
6, 82194 GROEBENZELL,
GERMANY
declare in own responsibility, that the ONKYO product described
in this instruction manual is in compliance with the corresponding
technical standards such as EN60065, EN55013, EN55020 and
EN61000-3-2, -3-3.
GROEBENZELL, GERMANY
I. MORI
ONKYO EUROPE ELECTRONICS GmbH
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Controls
FRONT VIEW
REAR PANEL
PHASE
STANDBY/ON
NOR
REV
1
3
4
OUTPUT LEVEL
FREQUENCY
2
L
R
(
)
MONO
LINE
INPUT
C
SPEAKER LEVEL
OUTPUT
INPUT
FROM
TO SPEAKERS
AMP/RECEIVER
L
L
A
B
R
R
POWER
OFF
ON
5
To AC outlet
1
Standby/On indicator (STANDBY/ON)
This indicator lights up when the power switch is
set to the ON position.
A SPEAKER LEVEL INPUT terminals
Connect these input terminals to the speaker output
terminals of your amplifier or receiver.
Red:
The unit is in Standby mode
B SPEAKER LEVEL OUTPUT terminals
The speaker-level signal to the front speakers is out-
put from these terminals.
Green: The unit is in Operational mode
If the power is turned on, the SL-107 automatically
enters Operational mode when a signal is input.
The SL-107 automatically returns to Standby mode
when no signal has been input for about 20 minutes.
C LINE INPUT jacks
Connect these jacks to the LINE OUT jacks on the
amplifier etc.
2
3
FREQUENCY knob
Use this knob to select the high-frequency range at
which 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.
PHASE switch
Use this switch to reverse the phase of the SL-107.
Normally, set the switch to the “NOR” position.
Depending on the connected speakers or the instal-
lation environment of the SL-107 however, the
“REV” position may result in better sound. Select
the switch position that produces a louder bass
sound.
4
5
OUTPUT LEVEL knob
Use this knob to adjust the output level of the sub-
woofer.
Note:
The auto standby function engages if the input signal
level is constant. If the auto standby function does not
operate properly, try slightly increasing (or decreasing)
the subwoofer output level of the receiver.
POWER switch
Press this switch to the ON position to turn on the
power. Press it to the OFF position to turn off the
power.
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Connections
For safety considerations, turn off the power to this unit
and all other system components before you connect or
disconnect any component.
Connecting two channel outputs (when your ampli-
fier does not have SUBWOOFER PREOUT jack):
If your preamplifier is equipped with two channel out-
puts, connect them to the right and left LINE INPUT
jacks on the SL-107.
Using the SL-107 with an AV amplifier
Preamplifier / Pre-main amplifier
When using the SL-107 in conjunction with an AV
amplifier or receiver that features surround capability,
connect the SL-107 to SUBWOOFER PREOUT jack
using the supplied pin connector cable. If you use
speaker cable to make the connection, depending on the
amplifier or receiver settings, the bass signals may cut
out, resulting in decreased fidelity in the low bass range.
For more information on proper connection procedures,
refer to the instruction manual supplied with your ampli-
fier or receiver.
PREOUT
L
To power amplifier
R
PHASE
NOR
REV
OUTPUT LEVEL
FREQUENCY
Connecting to an amplifier’s SUBWOOFER
PREOUT jack
(Not supplied)
L
R
(
)
MONO
LINE
INPUT
SPEAKER LEVEL
OUTPUT
TO SPEAKERS
INPUT
FROM
If your amplifier (or receiver) is equipped with SUB-
WOOFER PREOUT jack, connect it to the SL-107’s left
LINE INPUT jack.
AMP/RECEIVER
L
L
R
R
Amplifier with SUBWOOFER PREOUT jack
POWER
OFF
ON
SL-107
(Supplied)
PHASE
NOR
REV
OUTPUT LEVEL
FREQUENCY
L
R
(
)
MONO
LINE
INPUT
SPEAKER LEVEL
OUTPUT
TO SPEAKERS
INPUT
FROM
AMP/RECEIVER
L
L
R
R
POWER
OFF
ON
SL-107
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Connections—Continued
Connecting to speaker terminals on an
amplifier (or receiver)
Notes:
• When connecting speaker cables, do not mistake the
(+) and (–) or the L (left) and R (right) terminals. If
you connect the speaker cables incorrectly, there will
be a loss of fidelity in the bass range.
• The speakers connected to the SL-107 SPEAKER
LEVEL OUTPUT terminals must have an impedance
equal to or greater than the rating indicated on the
amplifier connected to the SPEAKER LEVEL INPUT
terminals. Otherwise, the amplifier may be damaged.
• When you connect the speaker
1. Using the speaker cables, connect the SL-107
SPEAKER LEVEL INPUT terminals to the ampli-
fier’s speaker terminals.
2. Using the speaker cables, connect the right and left
speakers to the SL-107 SPEAKER LEVEL OUT-
PUT terminals.
Amplifier
(or Receiver)
Speaker Speaker
(L ch) (R ch)
cables, make sure the core wires
Speaker terminals
do not make contact with other
_
_
+
R
L +
terminals or metallic parts of the
unit.
• Do not use BTL (Balanced Trans-
former-Less) type amplifiers.
PHASE
NOR
REV
Using a BTL amplifier may damage both the amplifier
and the subwoofer. Ordinary amplifiers are not BTL
amplifiers. For more information, see the amplifier’s
instruction manual.
OUTPUT LEVEL
FREQUENCY
L
R
(
)
MONO
LINE
INPUT
SPEAKER LEVEL
OUTPUT
TO SPEAKERS
INPUT
FROM
AMP/RECEIVER
L
L
R
R
POWER
OFF
ON
SL-107
• Connecting the speaker cables
1. Twist the core wires at the
stripped end of the cable.
1.
2. Press the lever of the SPEAKER
LEVEL terminal, fully insert
the twisted core wires into the
terminal hole, and then release
the lever.
2.
3.
3. Pull the speaker cable gently to
ensure that it is connected
firmly.
En-6
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Subwoofer effects
Adjustments
Adding a subwoofer to your speaker system expands the
bandwidth of the bass range. However, if the sub-
woofer’s reproduction bandwidth or sound output level
is improperly adjusted, the overall performance may
decrease, as shown in the graphs below.
Crossover frequency and output level
• Adjust the SL-107 output level and crossover fre-
quency to suit your listening room and connected
speakers.
• When the unit is connected to an amplifier via the
SPEAKER LEVEL INPUT terminals, setting the
OUTPUT LEVEL knob near the center position will
create a well-balanced sound level on most speakers.
• Be aware that you might set the subwoofer to a high
output level because superbass-range sound is less
audible than other sound ranges. To obtain well-bal-
anced frequency characteristics, set the output level to
a slightly lower level than seems optimal. (This will
also prevent the input of signals that are too strong.)
When the subwoofer’s reproduction bandwidth
is correct
Overall characteristics
Speaker characteristics
Note:
Subwoofer characteristics
Be careful not to allow the input of excessive power.
Input levels that greatly exceed normal situations can
damage the SL-107. Also note that switching operations
at the amplifier may generate excessive noise that may
result in damage. When using switches at the amplifier,
first lower the volume to prevent accidental damage.
When the subwoofer’s output level is incorrect
Output level is too high
Placement
Output level is too low
The placement of the SL-107 can greatly affect the
sound that is produced. In general, a good bass sound can
be obtained by installing the subwoofer in a front corner,
or at one-third the width of the wall, as shown.
When the subwoofer’s reproduction bandwidth
is far from the speaker’s bandwidth
Curve is sunken
When the subwoofer’s reproduction bandwidth
is close to the speaker’s bandwidth
Curve is raised
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Troubleshooting
Specifications
Type
Bass-reflex with built-in power
amplifier
The unit does not turn on
• The power plug is not fully inserted.
➞ Insert the power plug fully into the power outlet.
Use
For superbass-range repro-
duction
30–200 Hz
Frequency response
No sound is output
(at maximum crossover fre-
quency)
50–200 Hz (variable)
• The OUTPUT LEVEL knob is set to the MIN level.
➞ Set the OUTPUT LEVEL knob properly.
• Pin connector cable(s) are disconnected at the LINE
INPUT jacks.
➞ Connect cable(s) to the LINE INPUT jacks.
• Speaker cables are not properly connected to the
SPEAKER LEVEL INPUT terminals.
➞ Connect the speaker cables properly.
• The speaker setting at the amplifier (or receiver) is
incorrect.
➞ Check the settings at the amplifier (or receiver).
➞ Slightly increase the output level at the amplifier
(or receiver) (see page 5).
• The input signal is so small that the unit entered
Standby mode.
Crossover frequency
Maximum output power 150 W Dynamic
Input impedance
1.2 kΩ
(for SPEAKER LEVEL INPUT
terminals)
65 kΩ (for LINE INPUT jacks)
Sensitivity
Speaker-Level
Line
Speaker
Power supply
Power consumption
1.6 V
230 mV
20-cm woofer
AC 220–230 V, 50/60 Hz
75 W
Dimensions (W × H × D) 230 × 435 × 401 mm
Weight
Accessory
13.0 kg
Pin connector cable (1 pc.)
Cork spacers (4 pcs.)
Instruction manual (this man-
ual)
➞ Turn the OUTPUT LEVEL knob until the
Standby/On indicator light is green.
Others
Auto standby
Low sound output
Specifications and appearance are subject to change
without prior notice.
• Speaker cables are connected to the SPEAKER
LEVEL INPUT terminals with reversed phase.
➞ If cables are connected with reversed phase, L and
R low-range signals will cancel each other, dimin-
ishing the low-range sound. Connect the speaker
cables properly.
• The sound source might not include a superbass range.
➞ Play a sound source that includes a superbass
range.
Hum noise
• Pin connector cable is not inserted completely.
➞ Fully insert the pin connector cable.
• External leakage flux (induction noise by TV, etc.)
occurs.
➞ Relocate the SL-107 away from the noise source
and re-connect.
En-8
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Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: 072-831-8023 Fax: 072-831-8124
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
ONKYO EUROPE ELECTRONICS GmbH
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY
ONKYO CHINA LIMITED
Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,
N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039
HOMEPAGE
SN 29343607
I0310-1
(C) Copyright 2003 ONKYO CORPORATION Japan. All rights reserved.
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