Onkyo Portable Speaker D 525 User Manual

Before UsingYour New Speakers  
Speaker System  
• 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.  
D-525  
D-425  
D-325  
• 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.  
Precautions  
Instruction Manual  
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).  
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.  
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.  
En  
 
D-325  
Speaker Placement  
1. Peel the insulation off the ends  
of the speaker cable and twist  
the core wires.  
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.  
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.  
Right speaker  
Left speaker  
Positive (+) side is  
indicated by a  
red line  
Speaker cable  
Shim  
• 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.  
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.  
• 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.  
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.  
Care  
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.  
3
 
Specifications  
D-525/425  
D-325  
Type:  
Impedance:  
Maximum input power:  
2-way bass reflex  
4 Ω  
70 W  
Type:  
Impedance:  
Maximum input power:  
2-way bass reflex  
4 Ω  
70 W  
Output sound pressure level: 83 dB/W/m  
Output sound pressure level: 83 dB/W/m  
Frequency response:  
Crossover frequency:  
Cabinet capacity:  
50 Hz–100 kHz  
6 kHz  
7.9  
Frequency response:  
Crossover frequency:  
Cabinet capacity:  
50 Hz–100 kHz  
6 kHz  
7.9  
Dimensions (W × H × D): 160 × 275.5 × 272.5 mm  
Dimensions (W × H × D): 160 × 275.5 × 271.5 mm  
(incl. grille and projection)  
(incl. grille and projection)  
Weight:  
Speakers  
3.9 kg  
Weight:  
Speakers  
3.8 kg (8.6 lbs)  
Woofer: 13 cm A-OMF MONO-  
COQUE type  
Woofer: 13 cm A-OMF MONO-  
COQUE type  
Tweeter: 3 cm ring drive  
Nut-type binding posts,  
compatible with banana  
plugs  
Tweeter: 3 cm ring drive  
Push-type  
Terminal:  
Terminal:  
Grille:  
Accessories:  
Detachable  
1.8 meter speaker cable × 2  
Grille:  
Accessories:  
Detachable  
Cork spacer × 8  
1.8 meter speaker cable × 2  
Others:  
Magnetic shielding  
Cork spacer × 8  
Specifications and appearance are subject to change for  
improvement without prior notice.  
Others:  
Magnetic shielding  
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8163  
ONKYO U.S.A. CORPORATION  
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 201-785-2600 Fax: 201-785-2650 http://www.us.onkyo.com/  
ONKYO EUROPE ELECTRONICS GmbH  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.eu.onkyo.com/  
ONKYO EUROPE UK Office  
Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ  
UNITED KINGDOM Tel: +44-(0)1494-681515 Fax: +44(0)-1494-680452  
HOMEPAGE  
ONKYO CHINA LIMITED  
Unit 1&12, 9/F, Ever Gain PlazaTower 1, 88, Container Port Road, Kwai Chung,  
N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039  
I0802-1  
SN 29344631  
(C) Copyright 2008 ONKYO CORPORATION Japan. All rights reserved.  
* 2 9 3 4 4 6 3 1 *  
 

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