Onkyo SL-107 User Manual

SL-107Chi.book Page 1 Tuesday, September 30, 2003 2:43 PM

Powered Subwoofer

SL-107

Contents

English ................ En-1

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.

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WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS
TO RAIN OR MOISTURE.

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.

Important Safety Instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radia­tors, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding
prong. The wide blade or the third prong are pro­vided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for
replacement of the obsolete outlet.

10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience recepta­cles, and the point where they exit from the appara­tus.

11. Only use attachments/accessories specified by the
manufacturer.

12.

Use only with the cart, stand,

PORTABLE CART WARNING

tripod, bracket, or table spec­ified by the manufacturer, or
sold with the apparatus.
When a cart is used, use cau­tion when moving the cart/
apparatus combination to
avoid injury from tip-over.

S3125A

13. Unplug this apparatus during lightning storms or
when unused for long periods of time.

14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.

15. Damage Requiring Service

16. Object and Liquid Entry

17. Batteries

18. If you install the apparatus in a built-in installation,

WARNING

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.

AVIS

RISQUE DE CHOC ELECTRIQUE

NE PAS

OUVRIR

Unplug the apparatus from the wall outlet and refer
servicing to qualified service personnel under the
following conditions:
A. When the power-supply cord or plug is damaged,
B. If liquid has been spilled, or objects have fallen

into the apparatus,

C. If the apparatus has been exposed to rain or

water,

D. If the apparatus 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 apparatus to its normal operation,

E. If the apparatus has been dropped or damaged in

any way, and

F. When the apparatus exhibits a distinct change in

performance this indicates a need for service.

Never push objects of any kind into the apparatus
through openings as they may touch dangerous volt­age points or short-out parts that could result in a
fire or electric shock.
The apparatus shall not be exposed to dripping or
splashing and no objects filled with liquids, such as
vases shall be placed on the apparatus.
Don’t put candles or other burning objects on top of
this unit.

Always consider the environmental issues and fol­low local regulations when disposing of batteries.

such as a bookcase or rack, ensure that there is ade­quate ventilation.
Leave 20 cm (8") of free space at the top and sides
and 10 cm (4") at the rear. The rear edge of the shelf
or board above the apparatus shall be set 10 cm (4")
away from the rear panel or wall, creating a flue-like
gap for warm air to escape.

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Precautions

1. Recording Copyright

Unless it’s for personal use only, recording copyrighted
material is illegal without the permission of the copy­right holder.

2. AC Fuse

The AC fuse inside the SL-107 is not user-serviceable.
If you cannot turn on the SL-107, contact your Onkyo
dealer.

3. Care

Occasionally you should dust the SL-107 all over with a
soft cloth. For stubborn stains, use a soft cloth damp­ened 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.

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).

6. Color

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.

7. Precaution on use

If the following abnormal signals are fed to the speaker,
however, an overcurrent may flow in the internal cir­cuits, causing burning or breakage of the wires:

1. Special test signals produced by audio checking
CD, etc.

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.

5. Placement

• The enclosure is made of wood and is therefore sensi­tive 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 humidi­fier. 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 dam­aged.

• 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 sim­ilar surfaces, attach these spacers to the bottom sur­face 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, feed­back 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

• 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.

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.

Contents

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

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

1

STANDBY/ON

1 Standby/On indicator (STANDBY/ON)

This indicator lights up when the power switch is
set to the ON position.
Red: The unit is in Standby mode
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.

2 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.

3 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 instal­lation 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 OUTPUT LEVEL knob

Use this knob to adjust the output level of the sub­woofer.

5POWER switch

Press this switch to the ON position to turn on the
power. Press it to the OFF position to turn off the
power.

PHASE

NOR

3

OUTPUT LEVEL

FREQUENCY

4

C

LINE
INPUT

SPEAKER LEVEL

INPUT OUTPUT

FROM
AMP/RECEIVER

L

LR

(

)

MONO

A

R

POWER

ONOFF

REV

2

TO SPEAKERS

L

B

R

5

To AC outlet

A SPEAKER LEVEL INPUT terminals

Connect these input terminals to the speaker output
terminals of your amplifier or receiver.

B SPEAKER LEVEL OUTPUT terminals

The speaker-level signal to the front speakers is out­put from these terminals.

C LINE INPUT jacks

Connect these jacks to the LINE OUT jacks on the
amplifier etc.

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.

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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.

Using the SL-107 with an AV 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 ampli­fier or receiver.

Connecting to an amplifier’s SUBWOOFER
PREOUT jack

If your amplifier (or receiver) is equipped with SUB­WOOFER PREOUT jack, connect it to the SL-107’s left
LINE INPUT jack.

Amplifier with SUBWOOFER PREOUT jack

Connecting two channel outputs (when your ampli­fier does not have SUBWOOFER PREOUT jack):

If your preamplifier is equipped with two channel out­puts, connect them to the right and left LINE INPUT
jacks on the SL-107.

Preamplifier / Pre-main amplifier

PREOUT

L

R

(Not supplied)

To power amplifier

PHASE

OUTPUT LEVEL

LINE
INPUT

INPUT OUTPUT

FROM
AMP/RECEIVER

L

R

POWER

ONOFF

FREQUENCY

LR

(

)

MONO

SPEAKER LEVEL

TO SPEAKERS

NOR
REV

L

R

OUTPUT LEVEL

LINE
INPUT

POWER

ONOFF

(Supplied)

PHASE

FREQUENCY

LR

(

)

MONO

SPEAKER LEVEL

INPUT OUTPUT

FROM

TO SPEAKERS

AMP/RECEIVER

L

R

SL-107

SL-107

NOR
REV

L

R

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Connections —Continued

Connecting to speaker terminals on an
amplifier (or receiver)

1. Using the speaker cables, connect the SL-107
SPEAKER LEVEL INPUT terminals to the ampli­fier’s speaker terminals.

2. Using the speaker cables, connect the right and left
speakers to the SL-107 SPEAKER LEVEL OUT­PUT terminals.

Amplifier

(or Receiver)

Speaker terminals

_

_

R+

L +

OUTPUT LEVEL

FREQUENCY

LR

(

)

MONO

LINE
INPUT

SPEAKER LEVEL

INPUT OUTPUT

FROM
AMP/RECEIVER

L

PHASE

TO SPEAKERS

NOR
REV

L

Speaker

(L ch)

Speaker

(R ch)

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
cables, make sure the core wires
do not make contact with other
terminals or metallic parts of the
unit.

• Do not use BTL (Balanced Trans­former-Less) type amplifiers.
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.

POWER

R

ONOFF

R

SL-107

• Connecting the speaker cables

1. Twist the core wires at the
stripped end of the cable.

2. Press the lever of the SPEAKER
LEVEL terminal, fully insert
the twisted core wires into the
terminal hole, and then release
the lever.

3. Pull the speaker cable gently to
ensure that it is connected
firmly.

1.

2.

3.

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Subwoofer effects

Adding a subwoofer to your speaker system expands the
bandwidth of the bass range. However, if the sub­woofer’s reproduction bandwidth or sound output level
is improperly adjusted, the overall performance may
decrease, as shown in the graphs below.

When the subwoofer’s reproduction bandwidth
is correct

Overall characteristics

Speaker characteristics

Subwoofer characteristics

When the subwoofer’s output level is incorrect

Output level is too high

Adjustments

Crossover frequency and output level

• Adjust the SL-107 output level and crossover fre­quency 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-bal­anced 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.)

Note:

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.

Output level is too low

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

Placement

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.

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➞

➞

➞

➞

➞

➞

➞

➞

➞

➞

➞

Troubleshooting

The unit does not turn on

• The power plug is not fully inserted.
Insert the power plug fully into the power outlet.

No sound is output

• 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.

Turn the OUTPUT LEVEL knob until the
Standby/On indicator light is green.

Low sound output

• 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, dimin­ishing 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.

Specifications

Type Bass-reflex with built-in power

amplifier

Use For superbass-range repro-

duction

Frequency response 30–200 Hz

(at maximum crossover fre-

quency)
Crossover frequency 50–200 Hz (variable)
Maximum output power 150 W Dynamic
Input impedance 1.2 k Ω

(for SPEAKER LEVEL INPUT

terminals)

65 k Ω (for LINE INPUT jacks)
Sensitivity
Speaker-Level 1.6 V
Line 230 mV
Speaker 20-cm woofer
Power supply AC 220–230 V, 50/60 Hz
Power consumption 75 W
Dimensions (W × H × D) 230 × 435 × 401 mm
Weight 13.0 kg
Accessory Pin connector cable (1 pc.)

Cork spacers (4 pcs.)

Instruction manual (this man-

ual)
Others Auto standby

Specifications and appearance are subject to change
without prior notice.

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.

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Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]

ONKYO U.S.A. CORPORATION

18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] http://www.onkyousa.com

ONKYO EUROPE ELECTRONICS GmbH

Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY
Tel: [phone] Fax: [phone] http://www.onkyo.net

ONKYO CHINA LIMITED

Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,
N.T., HONG KONG Tel: [phone] Fax: [phone]

SN 29343607

(C) Copyright 2003 ONKYO CORPORATION Japan. All rights reserved.

Cs-

11

HOMEPAGE

http://www.onkyo.com/

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