Quadral AURUM 170 - Manual (Page 3)

Setting up
To obtain optimal sound results, it is generally necessary to try out different set-ups.
Since the room conditions have a major effect on sound reproduction, we suggest
below a few useful approaches for positioning your
AURUM loudspeakers.
Main speakers (front)
Where the speakers are positioned in the listening space has a decisive effect on
their sound. Placing the speakers near the corners of the room will essentially give
you loud bass reproduction but with little outline. On the other hand, speakers
positioned well away from the walls sound precise, but also very bright and thin. The
best solution is to place the speakers with at least 30 cm between their backs and
the nearest wall. To avoid loud wall reflections, the distance from the side walls of the
room can even be 50 cm or more. Bookshelf speaker units sound best on a speaker
stand or shelf, with the tweeters arranged at ear height. The cases should be angled
and slightly tilted to achieve this.
Ss far as possible, the speakers should be equidistant from the listening position, while
the distance of the speakers from each other can be rather less than the distance
from the listener.
Front centre speaker
The centre loudspeaker is magnetically
shielded, therefore causes neither colour
faults nor distortion in the TV picture and
should if possible be placed directly on
the TV. If this is not possible, place the
centre speaker horizontally beneath
the TV, with the distance to the floor
being at least 20 cm.
Apart from the above, we recommend
angling the centre speaker so that the
tweeter is aimed at the listener in order
to enjoy its full sound potential.
• For safety reasons, we generally forbid the opening of loudspeaker cabinets
when in operation or connected since, as explained in the above paragraph,
voltages of up to 50 volts can be present inside.
• Improper handling of mains voltage can cause fatal injury!
Passive loudspeakers must on no account be connected to the electricity
supply!
Speaker terminals may only be connected to the appropriate output terminals
of the amplifier. You should never connect these terminals to the electricity supply
(230 V/115 V) in any way since that will otherwise also immediately destroy the
loudspeaker and all connected products. Avoid fitting plugs to ends of speaker
cables that could even remotely be confused with mains supply plugs.
• Loudspeakers that are not magnetically shielded can affect the colour of the
TV picture or cause distortion. A distance of 50 cm is generally sufficient to avoid
problems of this kind. Avoid placing items such as credit cards, diskettes, audio or
video cassettes or other magnetic media on the loudspeaker. This could destroy
the information stored on them. Similarly, avoid operating magnetic tape devices
in the immediate vicinity.
CENTER
FRONT
TV
FRONT
SUBWOOFER
REAR
REAR
50 cm > –
REAR
CENTER
BDA AURUM 22.1005.indd 4-5 30.10.2005 15:39:05 Uhr