LANSCHE AUDIO No.7 Manuel utilisateur
L A N SC H E A U D I O ●W a l l h a u s e r s t r . 1 2 ●78465- K o n s t a n z ●G e r m a n y ●w w w . l a n s c h e - a u d i o . c o m
LANSC HE AUDIO
OPERATING INSTRUCTION
LOUDSPEAKER
No.7
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
Page 1 / 18
OPERATING INSTRUCTIONS No.7
1. Unpacking the Speakers 3
2. Operating and Connecting Components 4
2.1. Overview 4
2.2. Positioning the Speakers 5
2.2.1 Acoustic alignment of the speakers 5
2.2.2. Distance between the speakers 6
2.2.3. Spikes/cones 6
2.3. Connecting the Speakers 7
2.3.1 Connecting the amplifier (single) 7
2.3.2. Connecting the amplifier (bi-amping / bi-wiring) 8
2.4. Operating the Speakers 9
2.5. Speaker Fine-Tuning 9
2.5.1. Adjusting the bass response 10
2.5.2. Adjusting the treble response 10
3. CORONA Plasma Tweeters 12
3.1. Information about CORONA Plasma Tweeters 12
3.2. Self-starting 13
3.3. Maintenance 13
3.4. Removing and Installing a CORONA Plasma Tweeter 14
3.5. Cleaning procedure 14
4. Miscellaneous Instructions 16
4.1 Warm-Up Phase 16
4.2. Load Rating 16
4.3. Caring for Your Speakers 16
5. Technical Specifications 16
6. General Notes on Safety 17
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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Dear Connoisseur of Great Sound!
We sincerely appreciate the trust you have extended to us in purchasing this Lansche product, and we
would like to congratulate you on your fine selection. In choosing this high-quality speaker system, you have
proven your elevated standards for craftsmanship and sound reproduction. This speaker system unites
sound fidelity, uncompromising quality, and technical innovation with an extraordinary degree of flexibility.
In order to achieve the best possible sound experience, please read these instructions carefully. Be sure to
keep these instructions in a safe place for future reference.
If you still have any questions, please feel free to consult your dealer or inquire directly with us.
We at LANSCHE AUDIO would like to wish you a very enjoyable listening experience.
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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1. Unpacking the Speakers
Please exercise care when unpacking LANSCHE AUDIO speakers and accessories. Because of their weight
and size, we strongly recommend using the assistance of another person. This will help to avoid damage to
the devices or to people when unpacking and setting up your speakers.
The following parts are included in the package:
2 x speaker cabinets
2 x AC power cables
8 x spikes
1 x operating instructions
1 x cleaning brush for CORONA electrode
2 x cable bridges
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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2. Operating and Connecting Components
2.1. Overview
2 Main power on/off switch
3 Bass reflex port (x2)
5 Logo (Front)
1 Cooling „CORONA“
6 Serial number & Technical sign
(Bottom)
4 Rear Terminal Panel
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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- Rear Terminal Panel (4) -
2.2. Positioning the Speakers
NOTE:
The following instructions are intended as guidelines to help you position the speakers
in a suitable way.
2.2.1 Acoustic alignment of the speakers
LANSCHE No.7 speakers should be placed at least 20 cm from the back wall, with a slight
inward angle of 5° to 8° to make sure they are not positioned parallel to the wall behind
them. Due to reasons of sound propagation, placing the speakers close to the wall will
adversely affect the sound quality. The walls reflect the sound, which is perceived by the
listener slightly later than the direct sound emission, thus distorting the main sound signal.
The best way to position your new speakers is to set up a so-called “stereo triangle”. This is
accomplished by arranging the speakers such that they create an equilateral triangle, with
the listener in the third position (equal distance between all points).
8 Speaker connection
plus (High/Mid)
9 IEC AC power
connector and fuse
10 Speaker connection
plus (Bass)
11 Speaker connection
minus (Bass)
7 Speaker connection
minus (High/Mid)
12 Adjusting the bass response
13 Adjusting the treble response
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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2.2.2. Distance between the speakers
The distance between the speakers for a stereo setup depends on the given distance from
the listening position. The distance between the two speakers should be slightly less than the
distance to the listening position. Thus, the closer you are to the speakers, the closer the
speakers should be to each other.
For optimal positioning, start with a basic distance of two meters, which is then adapted
according to the actual room dimensions.
If the speakers are too close, the stereo effect is hampered; if they are too far apart, sound is
mainly perceived as coming from either right or left, with an acoustic „gap‟ in the center.
It can be helpful to playback a recording whose spatial arrangement you are familiar with
when setting up the speakers.
Tip:
If possible set your amplifier to “mono.” This allows you to better adjust the center
listening position.
2.2.3. Spikes
For the purpose of acoustic isolation, your LANSCHE speakers come fitted with 8 spikes/cones
which are threaded in to 6mm holes located on the bottom plate (6).
CAUTION:
Floor standing speakers have a high center of gravity and can easily tip
over if improperly positioned or bumped. The buyer is responsible for
taking the appropriate precautions.
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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2.3. Connecting the Speakers
CAUTION:
Please turn off your amplifier before connecting any speakers. Supply
power to your No.7 only after all necessary connections have been
made to your audio/video components.
The following types of connections are possible:
- 4.0-mm banana plugs
Plugged directly into the open sockets. It is not necessary to screw them on.
- Spades (6mm)
Fastened by loosening the terminal „wing nuts‟ and then tightening the spade firmly onto
the contact surface.
2.3.1. Connecting the amplifier (single)
For every connection, make sure to maximize the contact area and tightly secure the
components to avoid loss of sound quality due to contact resistance. For a continuously
secure and corrosion-free connection, the surfaces of all connecting components should
also be gold plated if possible. Check to make sure that the stripped cable ends are not
touching each other at either the amplifier or speaker. Tighten the screw connections after a
few days, as any of the fasteners may have loosened up.
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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There are 2 cable bridges supplied for each speaker. When using a single wire connection
use the bridges as shown on the previous page. This method allows for speaker cables
terminated with banana plugs or spade lugs to be used.
When connecting speaker cables, it is absolutely necessary to check for proper polarity: plus
to plus and minus to minus. The screw clamps on the loudspeakers as well as the connectors
on the amplifier are colour coded and labelled (positive pole = red, negative pole = black).
To ensure proper connections, the wires on most speaker cables are also differentiated by
colour, form, or marking. Reversing the polarity of the right and left channels results in sound
distortions.
In order to avoid short circuiting, the bare ends of the stripped speaker cables should be as
short as possible, should not protrude from the screw clamps, and should never be allowed
to touch each other. If in doubt, please also refer to the operating instructions of your
amplifier.
2.3.2. Connecting the amplifier (bi-amping / bi-wiring)
To use bi-wiring or bi-amping first remove any cable bridges from the terminals (7,8,10,11)
located on the rear terminal panel (4).Connect your speaker cables as shown in the
drawing on the next page.
For bi-amping use either: 4 mono amplifiers, 2 stereo amplifiers or one 4 channel amplifier.
LANSCHE AUDIO OPERATING INSTRUCTIONS No.7
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NOTE:
The choice of speaker cables has a major impact on the sound of the
system and should therefore be considered carefully. The No.7 was
developed using high-quality connection cables and should also be
operated in your home with the appropriate cables. Please consult with your
LANSCHE AUDIO dealer to determine which cables are best for your system
in order to maximize the sound quality of your No.7.
2.4. Operating the Speakers
Switch on the speaker system No.7 by activating the power switch (2) located near the top at the
rear of the speaker cabinet. The indicator light on the power switch (2)and the logo (5) at the front
of the speaker will illuminate light blue and indicate that the control electronics are ready for
operation.
The CORONA plasma tweeter starts up automatically after about 30 seconds with a visible plasma
ball. This starting process may be accompanied by a clearly audible hiss. After about 45 more
seconds the plasma tweeter automatically switches over from the start-up process to normal
operating mode. This will be accompanied by a visible reduction in the size of its plasma ball
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