5
GB
The cabinet itself is manufactured in 25 mm veneered MDF board which in addition is braced internally and carefully dampened with
acoustic absorption foam. The surface of the foam has been furnished with a honeycomb pattern to give it the largest possible surface
area and hence maximise dampening of the sound emitted from the rear of the unit.
Installation
Placing
Placing speakers in a listening room is always a very critical operation, and therefore we have provided a few guidelines below, but we
also recommend that you experiment with the placing until
you
think the sound reproduction is perfect.
In general, placing a loudspeaker near a rear and/or side wall will boost the low frequency level but at the same time create reflections
in the midrange and treble area, which results in a deterioration of the stereo perspective.
Therefore, it is not possible to recommend one perfect placing in relation to the rear wall, as the optimum distance will depend very
much on the acoustics of the listening room. As a guideline for placing D 830, the optimum placing will be about 30-60 cm / 12 - 25 in.
from the rear wall, and for D 870 it will be about 50-100 cm / 20 - 40 in.
For both models, the distance to the side walls should be at least 1 m / 40 in.
In order to achieve optimum sound reproduction, the distance between the loudspeakers should be the same as the distance from either
loudspeaker to your preferred listening position (an equilateral triangle).
The loudspeakers might be angled slightly toward the listening position, to adjust the treble level to suit the room acoustics and your
taste. This will also ensure that the optimum listening position becomes less critical.
There should be no furniture or other obstacles between the speakers and the listening position.
NOTE: If you are also using the D 8 loudspeakers in a surround sound configuration, the loudspeakers may be placed as near as approx.
15 cm / 6 in. from the television set without any discoloration of the picture.
Recommended placing of D 870
Recommended placing of D 830
Also, D 830 should be placed at the proper listening height. For
this specific purpose we have manufactured Stand 60. Using this
stand will ensure that the loudspeakers are placed at the optimum
listening height.
All manuals and user guides at all-guides.com
