Onkyo D-TK10 Instruction Manual

Speaker System

D-TK10

2-Way Bass Reflex Loudspeaker

Instruction Manual

Contents

Features........................................ 2

Handling Precautions.................. 3

Getting to Know Your Speakers ...4

Thank you for purchasing an Onkyo speaker system.
Please read this manual thoroughly before using your
new speakers. Following the instructions in this
manual will enable you to obtain optimum
performance and listening enjoyment from your
speaker system.
Please retain this manual for future reference.

Connecting the Speakers............ 5

Fitting the Cork Spacers ............. 6

Attaching the Included

Protective Cover .......................... 6

Speaker Placement...................... 6

Speaker Care................................ 7

Using Close to a TV or

Computer...................................... 7

Precautions .................................. 7

Specifications .............................. 7

E

n

Features

Woofer

■

State-of-the-art A-OMF diaphragm

A thicker and rigid flexing A-OMF diaphragm
enables an extremely fast and accurate response, and
a built-in dust cap substantially improves its rigidity.

■

Well-balanced drive unit

A voice coil with a diameter of 1-1/2" provides
power, heat tolerance, and proper impedance. Posi­tioning the drive unit in the optimal diaphragm loca­tion (instead of the conventional center position)
reduces divisional vibration and extends the area for
a piston-like motion.

■

New edge and damper

A new V-shaped support edge minimizes radial
sound loss. The damper features an exceptionally
quick response and a nearly vertical-symmetry of
shape.

Tweeter

Ring drive

■

The tweeter features a ring diaphragm, the center of
which does not vibrate. Based on detailed analysis,
divisive vibration has been significantly reduced, and
the area of piston-like motion has been expanded.

■

Reflection reducing structure

An anti-reflective structure has been implemented
around the diaphragm. Detailed analysis helped
determine the optimal shape for elements surround­ing the diaphragm, and reduced unnecessary reflec­tive vibrations.

Others

AERO ACOUSTIC DRIVE

■

Film capacitor manufactured by WIMA,

■

Germany
Gold-plated brass terminals compatible

■

with banana plugs

■

Laser-processed ONKYO logo

This product uses natural materials. Unlike
products made from processed or synthetic
materials, each unit features different wood pat­tern. This wood pattern reveals annual wood
growth rings, which feature natural organic ring
patterns and dark and light colors.

Onkyo strives to preserve natural elements in its
products whenever possible, and hopes that you
will enjoy the characteristics of this product as
part of your musical entertainment.

Onkyo pledges that finish quality is in strict
compliance with all Onkyo QA standards.

Cabinet

■

Takamine Acoustic Voicing TECHNOLOGY

The speaker cabinet was developed jointly with
Takamine, the world-famous guitar manufacturer.
The materials, bracing, and finish are the same as
used on Takamine guitars, and contribute to a rich,
natural tonal output not only from the speaker unit,
but from the entire cabinet as well. The cabinet is
crafted from mahogany.

■

Base

The base is crafted from laminated rosewood.

2

Handling Precautions

Do not handle the speakers with wet or damp hands.

Precautions for unpacking

■

• When you remove the unit from the package,
be sure to hold the upper and bottom part of
the unit securely.

Upper part

Speaker

component

Bottom
part

Cabinet

■

Speaker

component

• Do not touch the speaker
component parts.

The speaker cabinet was crafted from the same materials and utilized the same processing technology and fin­ish processing as Takamine guitars. The fine tone wood materials (which are usually reserved for guitars) is
an organic, natural material, and is very susceptible and sensitive to environmental changes (compared to typ­ical speakers).

Be careful not to expose the unit to extremely low or high humidity, or high temperatures. Otherwise, the unit
may become deformed, or in the worst case, may crack.

Pay proper attention to the environmental conditions of your installation location.

■

Re-locating the unit

When you re-locate the unit, hold the bottom of the unit securely from the sides. Do not touch the speaker
component parts with your hand. Otherwise, the speaker components may be damaged.

Be careful not to drop the speaker. The speaker’s protective cover is slippery. If the protective cover is
attached to the unit, remove the cover before you move the unit. If you try to hold the sides of the
speaker while the protective cover is attached, the speaker may fall, resulting in injury or damage.

3

Getting to Know Your Speakers

Front Rear Side

Tw eeter

Cabinet

Woofer Speaker terminals

Slit duct for Aero
Acoustic Drive

Base

4

Connecting the Speakers

Before connecting your speakers

Read the following before connecting your speakers.

•Turn off your amplifier before making any connec­tions.

• The nominal impedance of these speakers is
4 ohms. Use only an amplifier that supports this
impedance.

• Be sure to connect the speaker wires with the cor­rect polarity. Connect the speaker’s positive (+)
binding post to your amplifier’s positive (+) termi­nal, and the negative (–) binding post to its nega­tive (–) terminal. If the polarity is incorrect, bass
output will be greatly reduced and the sound will
be unclear. In addition, be sure to connect the left
and right speakers to the corresponding left and
right terminals on your amplifier.

• Make sure that the positive
(+) and negative (–) speaker
wires are not touching each
other. Shorting speaker wires
may seriously damage your
amplifier.

• As you make each connection, lightly tug each
speaker wire to make sure that it’s connected
securely.

Speaker hookup

1.

Loosen the speaker terminals.
Insert the speaker wires into the speaker termi-

2.

nals as shown, and tighten the speaker termi­nals.

Right

speaker

Left

speaker

1

2

Amplifier, etc.

Tip:

• The speaker terminals can be used with commer­cially available speaker cables fitted with banana
plugs. Before inserting a plug, tighten the speaker
terminals first.

Banana-plug

5

Fitting the Cork Spacers

Speaker Placement

To get the best sound from the speakers, we recom­mend that you fit the supplied cork spacers. This will
also improve their stability and prevent them from
slipping.

Bottom of
the D-TK10

Cork spacers

Attaching the Included Protective
Cover

If you plan not to use the speaker for a long period of
time, attach the included protective cover to protect
the speaker from dust, scratches, or sun damage.
To attach the cover, first make sure the front and rear
of the cover are properly oriented.
To remove the cover, slowly raise the cover so that it
will not be caught by the speaker surface.

The quality of the sound produced by the speakers is
directly affected by the size and shape of the room in
which they’re used and its furnishings. When decid­ing where to place the speakers, read the following:

• If possible, mount the speakers on speaker stands,
concrete blocks, bricks, or a sturdy bookshelf. Put­ting them directly on the floor will emphasize bass
sounds, resulting in a boomy sound.

• If a speaker is placed on an uneven surface, it may
wobble or vibrate and adversely affect bass perfor­mance. You can eliminate speaker wobble by put­ting a cork spacer or metal, such as a coin,
underneath the speaker or stand, as shown.

• If you place the speakers on a flat surface, such as
a bookshelf, you can improve the sound quality by
inserting cork spacers or metal, such as a coin,
underneath each speaker. Raising the speaker off
the flat surface a little will reduce the contact area
and improve the sound quality.

Cork spacer
or coin

Rear

• If you like lots of bass, mount the speakers on low
speaker stands and place them in front of a solid

Front

Protective

cover

Speaker

wall.

•Walls and furnishings can also affect sound qual­ity. For good stereo imaging, put the left and right
speakers in similar locations at the same distance
away from your listening position and at the same
height. If you put them in totally different loca­tions, for example, one on the floor and the other
on a bookshelf, the stereo imaging will be poor.

•To determine the best positions for the speakers,
imagine an equilateral triangle and put the left and
right speakers at the ends of its base. The perfect
listening position will be at or slightly behind the
triangle’s apex. Angle the speakers slightly toward
your listening position.

• Glass doors and smooth walls behind the listening
position can reflect the sound from the speakers
and can make sounds at certain frequencies louder.
You can prevent this by hanging sound-absorbing
material such as thick curtains on the door or wall.

6

Speaker Care

Precautions

To maintain the appearance of the speakers, you
should wipe them periodically with a soft, dry cloth.
Stubborn stains can be removed by using a soft cloth
dampened with water and a mild detergent. Dry the
speakers immediately afterward with a clean, dry
cloth. Do not use abrasive cloths, thinners, alcohol,
or any other chemical solvents because they may
damage the finish.

Using Close to a TV or Computer

TVs and computer monitors are magnetically sensi­tive devices and as such are likely to suffer from dis­coloration or picture distortion when conventional
speakers are placed nearby. To prevent this, the D­TK10 speakers feature internal magnetic shielding.
In some situations, however, discoloration may still
be an issue. In this case, turn off your TV or monitor,
wait 15 to 30 minutes, and then turn it back on again.
This normally activates the degaussing function,
which neutralizes the magnetic field, thereby remov­ing any discoloration effects. If discoloration prob­lems persist, try moving the speakers away from
your TV or monitor. Note that discoloration can also
be caused by a magnet or demagnetizing tool that’s
too close to your TV or monitor.

Notes:

• If the speakers are placed close to a TV or monitor,
due to the electromagnetic waves radiated by the
TV or monitor, you may hear noise from the
speakers even after your amplifier has been turned
off. In this case, position the speakers away from
your TV or monitor.

• The speakers contain powerful magnets. Do not
put metal items, such as s screwdrivers, close to
the speakers, as they may be attracted toward the
magnet, causing damage to the diaphragm or
injury.

The speakers can handle the specified input power
when used for normal music reproduction. If they’re
fed any of the following signals, even if the input
power is within the specified rating, excessive cur­rent may flow in the speaker coils, causing burning
or wire breakage:

1. Interstation noise from an untuned FM radio.

2. Audio from a cassette that’s being fast-for­warded.

3. High-pitched sounds generated by an oscillator,
electronic musical instrument, and so on.

4. Amplifier oscillation.

5. Special test tones from audio test CDs and so on.

6. Thumps and clicks caused by connecting or dis­connecting audio cables (always turn off your
amplifier before connecting or disconnecting
cables).

7. Microphone feedback.

Specifications

Type: 2-way bass reflex

Impedance: 4

Maximum input power: 200 W

Output sound pressure level:

Frequency response: 50 Hz–100 kHz

Crossover frequency: 3.5 kHz

Cabinet capacity: 4.2 L

Dimensions: 5-1/4"

Weight: 6.4 lbs (2.9 kg)

Woofer: 4" (10 cm) A-OMF cone

Tweeter: 1-3/16" (3 cm) ring-drive

Terminals: Gold-plated brass terminals that

Others: Magnetic shielding

Accessories: Cork spacer

Ω

80 dB/W/m

×

10-7/8"

×

8-11/16"
133 (W) × 276 (H) × 220 (D) mm
(Overall dimensions)

are compatible with banana plugs

× 8

Protective cover

×

2

Specifications and appearance are subject to change
for improvement without prior notice.

7

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.us.onkyo.com/

ONKYO EUROPE ELECTRONICS GmbH

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

ONKYO EUROPE UK Office

Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ
UNITED KINGDOM Tel: [phone] Fax: [phone]

ONKYO CHINA LIMITED

Unit 1&12, 9/F, Ever Gain PlazaTower 1, 88, Container Port Road, Kwai Chung,
N.T., HONG KONG Tel: [phone] Fax: [phone]
http://www.ch.onkyo.com/

SN 29344353

(C) Copyright 2006 ONKYO CORPORATION Japan. All rights reserved.

8

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