Onkyo D-325 User manual

En
Speaker System
D-525
D-425
D-325
Instruction Manual
Thank you for purchasing an Onkyo Speaker
System.
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 Speaker Sys-
tem.
Please retain this manual for future reference.
Before Using Your New Speakers
• The speaker cabinets are made out of wood
and are therefore sensitive to extreme tem-
peratures and humidity. Do not use them in
locations subject to direct sunlight or in
humid places, such as near an air conditioner,
humidifier, bathroom, or kitchen.
• Place the speakers on sturdy, flat surfaces.
Putting them on uneven or unstable surfaces
where they may fall and cause damage will
affect the sound quality.
• Do not keep water or other liquids close to
the speakers. If a liquid is spilled over them,
the woofer and tweeter inside may be dam-
aged.
•Do not handle the speakers with wet or damp
hands.
In catalogs and on packaging, the letter at the end of
the product name indicates the color. Specifications
and operation are the same regardless of the color.
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 cur-
rent 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 dis-
connecting audio cables (always turn off your
amplifier before connecting or disconnecting
cables).
7. Microphone feedback.
The speakers contain powerful magnets. Do not put
metal items, such as screwdrivers, close to the speak-
ers, as they may be attracted toward the magnet,
causing injury, or damage to the tweeter diaphragm.
Precautions
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• D-525/D-425/D-325
The two speakers are identical, so it doesn’t matter
which one you use on the left or right.
TVs and computer monitors are magnetically sensitive
devices and as such are likely to suffer from discolora-
tion or picture distortion when conventional speakers
are placed nearby. To prevent this, the speakers feature
internal magnetic shielding. In some situations, how-
ever, 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 dis-
coloration 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.
Note:
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. To prevent this,
position the speakers away from your TV or monitor.
You can use the speakers either with or without their
grilles, which can be removed as follows.
1. Use both hands to gently pull the bottom of the grille
away from the speaker.
2. Use both hands to gently pull the top of the grille
away from the speaker.
3. To replace the grille, align the four fasteners and gen-
tly push the grille toward the speaker.
You can improve the sound quality by attaching the
included cork spacers to raise the speakers off the surface
and reduce the contact area. The cork spacers also make
the speakers stable and prevent them from slipping.
• Before connecting the speakers, disconnect your
amplifier’s power cord from the wall outlet and set its
volume control to minimum.
•The speaker’s rated impedance is 4 Ω . Make sure you con-
nect an amplifier that is compatible with a 4
Ω impedance.
• Use the supplied speaker cables to connect the speak-
ers to your amplifier as shown.
D-525/D-425
Getting to Know the Speakers
Using Close to a TV or Computer
Removing the Speaker Grilles
Tweeter Grille
Woofer Cabinet
Grille attach-
ment catcher
ReplaceRemove
Using the Included Cork Spacers
Connecting the Speakers
D-525/D-425 D-325
Cork spacer
Bottom
Right speaker Left speaker
Speaker cable
Positive (+) side is
indicated by a
red line
1.Peel the
insulation off
the ends of
the speaker
cable and
twist the
core wires.
2.Loosen the
terminal screw
and insert the
speaker cable
into the hole
(until the core
wires are
inserted fully).
3.Fasten the
terminal
screw.
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D-325
The type of speaker terminals used on the receiver and
their position depends on the model. Refer to the
receiver’s instruction manual for details on connecting
speakers to the receiver.
Before Turning on Your Receiver:
• Make sure the speaker’s positive (+) terminals are
connected to the amplifier’s positive (+) terminals,
and the speaker’s negative (–) terminals are connected
to the amplifier’s negative (–) terminals. If you get the
polarity reversed, the sound will be unnatural, with a
limited bass range and poor stereo image.
•Make sure that the positive (+) and negative (–) wires
are not touching each other. If they are, a short circuit
may occur, damaging your amplifier.
The sound quality of the speakers is directly affected by
the size and shape of the room they’re used in and its
furnishings. When considering where to place your
speakers, read the following:
• Where possible, mount the speakers on speaker
stands, concrete blocks, bricks, or a sturdy bookshelf.
Putting them directly on the floor will emphasize bass
sounds, creating a boomy sound.
• If a speaker is placed on an uneven surface where it
can wobble or vibrate, bass performance will be
adversely affected. You can eliminate speaker wobble
by putting a shim made out of cork or metal, such as a
coin, underneath the speaker or stand, as shown.
• If you mount the speakers on a flat surface, such as a
bookshelf, you can improve the sound quality by
inserting cork spacers or coins in between the speaker
and the shelf. Raising them off the surface like this
will reduce the contact area and improve the sound.
• If you like lots of bass, mount the speakers on low
speaker stands and place them in front of a solid wall.
•Walls and furnishings affect sound quality. To achieve
a good stereo sound, 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 adversely affected.
•To determine the best positions for your speakers,
imagine an equilateral triangle and put the left and
right speakers at the ends of the base. The ideal listen-
ing position is at or slightly behind the triangle’s apex.
Angle the speakers 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 mate-
rial, such as thick curtain, on the door or wall.
To maintain the appearance of the speakers, you should
periodically wipe them 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 other chemical
solvents that may damage the finish.
Right speaker Left speaker
Speaker cable
Positive (+) side is
indicated by a
red line
1. Peel the insulation off the ends
of the speaker cable and twist
the core wires.
2. While pressing the lever, insert
the wire into the hole, and then
release the lever.
3. Make sure that the terminals are
gripping the bare wires, not the
insulation.
Speaker Placement
Care
Shim
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4
SN 29344631
I0802-1
(C) Copyright 2008 ONKYO CORPORATION Japan. All rights reserved.
http://www.onkyo.com/
HOMEPAGE
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/
* 2 9 3 4 4 6 3 1 *
D-525/425
Type: 2-way bass reflex
Impedance: 4 Ω
Maximum input power: 70 W
Output sound pressure level:
83 dB/W/m
Frequency response: 50 Hz–100 kHz
Crossover frequency: 6 kHz
Cabinet capacity: 7.9
Dimensions (W × H × D): 160 × 275.5 × 272.5 mm
(incl. grille and projection)
Weight: 3.9 kg
Speakers Woofer: 13 cm A-OMF MONO-
COQUE type
Tweeter: 3 cm ring drive
Terminal: Nut-type binding posts,
compatible with banana
plugs
Grille: Detachable
Accessories: 1.8 meter speaker cable × 2
Cork spacer × 8
Others: Magnetic shielding
D-325
Type: 2-way bass reflex
Impedance: 4 Ω
Maximum input power: 70 W
Output sound pressure level:
83 dB/W/m
Frequency response: 50 Hz–100 kHz
Crossover frequency: 6 kHz
Cabinet capacity: 7.9
Dimensions (W × H × D): 160 × 275.5 × 271.5 mm
(incl. grille and projection)
Weight: 3.8 kg (8.6 lbs)
Speakers Woofer: 13 cm A-OMF MONO-
COQUE type
Tweeter: 3 cm ring drive
Terminal: Push-type
Grille: Detachable
Accessories: 1.8 meter speaker cable × 2
Cork spacer × 8
Others: Magnetic shielding
Specifications and appearance are subject to change for
improvement without prior notice.
Specifications
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