DK Digital LS-180-1 User manual

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Thank you very much . . .
. . . for choosing one of our Speaker Systems. This manual is valid for model LS-180-1 in
several colour combinations. For your own safety and in order to learn all about the
functions available, please read this manual and keep it for future reference. And if you once
sell the unit please include the manual.
www.dk-digital.com
© 2006 Copyright, manufacturer: DK digital GmbH
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Important Safety Instructions, please Read Carefully!
•When using an amplifier with a rated output power higher than the nominal input power
of the speakers, be very careful. Never exceed the maximum input of the speaker
system, otherwise the speakers will be destroyed.
•Even if the output of the connected amplifier is lower than the load capacity of the
loudspeaker, an amplifier may not be operated at maximum volume, because that would
increase the risk of “clipping”, i.e. that there can be direct-current voltage at the
output of the amplifier if even only briefly. Direct-current voltage destroys the voice coils
of the loudspeakers.
•Any time you notice distortion or abnormal sound, immediately reduce the volume
control on your amplifier to a lower setting.
•Never attempt to open the housings of your speaker boxes or to service the product
beyond that described in this manual. All servicing or repair must be referred to qualified
service personnel authorised by us.
•So that neither the wood nor the loudspeaker membranes can be damaged, this
appliance must never be operated in damp rooms (e.g. bathroom). The loudspeakers
must also only be operated within closed rooms.
•Never let children play with the boxes or stick anything into it.
•Do not leave the boxes in direct sunlight for a long time, otherwise discolouration may
result. Avoid positions with heavy dust or poor ventilation. The unit should not be
exposed to mechanical vibrations or shock.
•You can use a soft damp cloth to clean the housings. Don’t use strong cleansing
products. NEVER touch the membrane of the speakers.
•Lay the loudspeaker cable so that nobody can stumble over it.
•The speaker set LS-180-1 represents a suitable surround expansion to out floor stand
speakers LS-180 and is optically and technically full compatible with them.
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Positioning the Speakers
You can mount the speakers on a plane and stable surface.
ØThe spacing between your loudspeakers will depend on the size of your listening room
and the distance of your seating from the loudspeakers. As a general rule, they should
not be closer than 1.5m (5 ft) and the space between them should not exceed the distan-
ce of your listening position. Placement of the loudspeakers and the listener as shown
here is not a bad rule to follow.
ØThe best balance of sound is achieved when the listener is within +5° of the reference
axis in the vertical plane. This equates to a range in height of 0.5m (20 inches) at a typi-
cal listening distance of 3m (10 ft). At progressively larger angles, the change in the rela-
tive time delay between the drive unit will gradually cause a response dip around the mid
to high crossover frequency.
ØThe loudspeakers of all boxes should be at the same height as the ears of the listener.
ØTake care not to set up the speakers close to a TV set as otherwise this can lead to slight
colour distortions of the TV picture. If that should happen increase the distance between
the speakers and the TV set. Then switch off the television and wait for 10 minutes before
you turn it on again. The centre speaker is magnetically shielded, so it shouldn’t cause
any problems in the near of the TV set.
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Connecting the Loudspeakers to the Amplifiers
In order to avoid damage of the speakers or other connected devices, please establish all
connections while the amplifier is switched off.
In phase connection
For optimum sound quality it is inevitable to connect speakers and amplifier in phase. I. e.,
within the respective channel (front right / left, centre, rear right / left)
- the „+ terminal” of the amplifier must be connected to the „+ terminal” of the box, and
- the „— terminal” of the amplifier must be connect to the „— terminal” of the box.
If the speakers are out of phase (i.e. the + terminal of one amplifier channel is connected to
the – terminal of one speaker, and the – terminal of one amplifier channel is connected to
the + terminal of one speaker), the sound will be affected and the speakers may be
damaged.
If the phase is reversed, the stereo image will be unstable, and the bass components will not
be clearly reproduced. Correctly connected (“in-phase”) speakers will give you a stable,
well-defined surround output, with a clear, powerful bass sound. Make sure that each +
terminal of the amplifier is correctly connected to the + terminals of the appropriate
speaker. Most speaker cables have one ridged or striped part, to help you distinguish + and
-. If you need to reverse the connections of one speaker to correct the phase, make sure the
amplifier is turned off before you disconnect the speaker.
Make sure that the surround box that you want to set up to the rear right of the listening
position is connected to the right surround channel on the amplifier, and the rear left box to
the left surround channel.
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Establish connection
Remove 2cm of insulation from the loudspeaker cable. To connect the cable, twist the flex.
Then open the loudspeaker clamp , stick the bared end of the cable - not insulated parts of
the cable - into the opening, and close the clamp.
Please carefully read the instruction manual of the respective amplifier to learn more about
the speaker connection.
You have paid attention to quality in your purchasing of loudspeakers and you should also
do this when choosing the loudspeaker cable. The cross-section and conductor material
play a decisive role in the later musical pleasure.
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Disposal advise
When the operating life of this device has ended it must not be
disposed as domestic waste, but in accordance with national
environmental guidelines.
Troubleshooting
In case any problems or malfunctions occur while running your device, you have several
options to get help from our support-centre:
• Telephone (from Germany): 09 00/1393684 (Euro 1.89/min)
• Fax (from Germany): 0 18 05 / 00 82 38
• via E-mail: [email protected]
Or visit us on our website (www.dk-digital.com), choose your language and click on
“Support”. Then fill-up the contact form provided there.
Technical specifications
Centre Rear
P.M.P.O. power rating 75 watts 75 watts
RMS power rating 15 watts 15 watts
Impedance 8 ohms 8 ohms
Sensitivity 85 db 85 db
Frequency response 100 Hz - 18 kHz 100 Hz - 18 kHz
Dimensions (W xHxD) 390x145x145 mm 145x243x145 mm
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© 2006 Copyright
We reserve the right to correct errors and make technical alterations.
This manual is copyrighted. All rights reserved. Neither the manual as a whole
nor excerpts may be reproduced without our prior written permission.
DK digital GmbH
40878 Ratingen
Germany
www.dk-digital.com