LANSCHE AUDIO No.7 Operating Instructions Manual Download Page 19

LANSCHE AUDIO 

 

OPERATING INSTRUCTIONS No.7 

 
 

 

Page 18 / 18 

 

Do not apply excessive force on the spikes when positioning the speakers, as this could cause them 
to be torn off from the bottom plate 

(6)

. When lifting the speakers, make sure not to injure yourself on 

the spikes. When you transport your speakers, be absolutely sure to first remove the AC power cable 
and any other cables connected to the  No.7.  Always apply the pulling force to the plug itself and 
never to the cable. 

 

13)

 

- When not in use 

If  the  speakers  will  not  be  in  operation  for  an  extended  period  of  time  (for  example,  during  a 
vacation),  disconnect  the AC  power  plug. If  a  storm  is expected,  it is  also  advisable  to disconnect 
the AC power plug and speaker cable to avoid damage caused by lightning. 

 

14)

 

- Service 

The user should not conduct any work on the speakers apart from the operations described in these 
instructions. The speakers are to be opened and repaired by qualified service personnel only. 
 

15)

 

- Damage 

The speaker should be immediately switched off and trained personnel should be consulted if: 
a.

 

Power cords or plugs are damaged; 

b.

 

Objects or liquids have found their way into the speaker;  

c.

 

The speaker was exposed to rain. 

d.

 

The speaker does not function properly, despite following the operating instructions. Only adjust 
the  operating  elements  as  described  in  the  instructions.  Improper  settings  of  other  operating 
elements can lead to damage that must then be

 

repaired by a qualified technician in order to 

return the speaker to its normal operating condition; 

e.

 

The device has fallen or been damaged; 

f.

 

The device does not function properly or displays an obvious drop in performance. 

 

16)

 

- Replacement parts 

 

If replacement parts are required, make sure that service technicians use parts recommended by the 
manufacturer or parts that possess the same technical characteristics as the originals. Unauthorized 
replacement parts can lead to fire, electric shock, or other hazards. 

 

17)

 

- Mains fuses

 

The  electronic components  of  the  Lansche  No.7  speaker  system  are  protected  against  damage  in 
several ways. To prevent fire, use only fuses of the type and rating specified by the manufacturer. The 
technical data for the fuses in the individual voltage ranges can be found on the label located on 
the bottom plate 

(6)

.

 

 

18)

 

- Magnetic leakage fields 

 

Each  device  produces  a  magnetic  leakage  field.  For  this  reason,  we  recommend  a  minimum 
distance  of  0.5  m  between  the  speakers  and  magnetically  sensitive  items  (televisions,  magnetic 
wristwatches, computer screens, audio and video tapes, etc.). 

 

19)

 

- CORONA plasma tweeters 

a.   The CORONA plasma tweeter emits a bright light (plasma ball) during the start up operation. 

As with any bright light source avoid looking directly at it from a short distance (less than 30 cm).  

b.  Avoid  allowing  any  objects  to  enter  into  the  CORONA‟s  plasma  ball  chamber  (except  for 

cleaning purpose, see section 3.5 of this manual). This could damage the chamber. 

 

When in operation, there is no danger of a hazardous electric shock if a metallic object should 

 

accidentally find its way into the chamber (inserted by a child, for example). 

c.   During operation, the temperature at the electrode tip is about 800 

°

C  (1,472 

°

F). Do not  allow 

any kind of material (especially flammable materials) to enter the chamber. Even after switching 
off, the temperature remains high for at least 30 minutes. 

 

d.    During operation, the horn of the tweeter can heat up to 50 

°

C (122 

°

F). Depending on the  

 

 

ambient temperature this can be higher. 

 

e.   CORONA  plasma  tweeters  are  highly  sensitive  electronic  devices.  Please  protect  them  from 

mechanical impacts or other mechanical influences. 

 

Summary of Contents for No.7

Page 1: ...LAN SCHE A UD IO W al lh au serstr 12 78465 Ko ns tanz Germ any www l ans c he au di o c om LANSCHE AUDIO OPERATING INSTRUCTION LOUDSPEAKER No 7...

Page 2: ...r 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 COR...

Page 3: ...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 b...

Page 4: ...r 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 part...

Page 5: ...NG INSTRUCTIONS No 7 Page 4 18 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...

Page 6: ...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 s...

Page 7: ...oo 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 record...

Page 8: ...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 ti...

Page 9: ...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...

Page 10: ...kers 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...

Page 11: ...e and many soft surfaces produces more of a dark lifeless sound impression Depending on the design of the room and the positioning of the speakers the influences of furniture curtains and other object...

Page 12: ...such as carpets or furniture speakers tend to produce an exaggerated treble response A room furnished with many sound absorbing elements will make the treble response seem much duller b Electronics A...

Page 13: ...sly in to the CORONA s plasma ball chamber This will produce audible noise and possibly ozone h Due to the nature of the vacuum tube in the CORONA it is possible it fails to self start after being pow...

Page 14: ...own the surrounding air molecules with high temperature and then modulating the air molecules with a high frequency carrier wave An electrode with a pointed tip is used to make contact with the air an...

Page 15: ...e black minus speaker cable Pull out the red plus speaker cable h When installing precede in reverse order ignoring step c CAUTION Let the CORONA cool down for 15 minutes before removing NOTE CORONA p...

Page 16: ...formed on the electrode you may have to repeat the procedure again h When starting the CORONA after the cleaning procedure there will be some small noises for a while This is normal and it is the res...

Page 17: ...gnals in the higher frequencies at very high volumes This clipping effect can even permanently damage the best speaker technology Damage caused in this way is not covered by the warranty 4 3 Caring fo...

Page 18: ...vents for the Corona 7 Sources of heat Never place the devices near sources of heat radiators heat accumulators stoves or other heat generating devices 8 Water and humidity To prevent the danger of e...

Page 19: ...quired make sure that service technicians use parts recommended by the manufacturer or parts that possess the same technical characteristics as the originals Unauthorized replacement parts can lead to...

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