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Placement
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ELLA can be placed on a wall and also in free space. In both positions the sound is of high quality due to the
special form and the Roll Off function in the amplifier. With our angled plugs, a minimum distance of 3cm for the
cooling of the amplifier is guaranteed.
If one loudspeaker can't be placed directly on a wall it is better to place it more than 50cm away from the wall.
The distance to the next corner of a room should not be less than 90cm.
90cm
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A listening angle of 60° for stereo recordings is common. This is the non-official standard in recording studios.
However we recommend to evaluate placing the loudspeakers at wider angles. With wider angles the acoustic
shadow of the head is better utilised. The separation between the left and the right channel will be better. The
sound will have more plasticity. Angles up to 100° are possible because ELLA has a high linearity in phase.
Some recordings may have an unnatural wide sound stage, but in most cases the sound impression will be
more realistic and the sound space more sculptural. The disadvantage of wider angles is that the listening zone
can be reduced.
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The loudspeaker axis should not be orientated directly to the listening position, but should cross in front of it. An
angle of 10-20° from the axis is recommended. The loudspeakers have been optimized for this orientation. The
soundstage will be deeper and more precise.
Another advantage is the extension of the listening zone, because of an acoustic behaviour of most
loudspeakers and especially ONDA: The sound pressure off axis will be reduced in the medium and even more
in the high frequency range. Listening positions off centre will be nearer to one of the loudspeakers but also
more off axis with regards to the nearer loudspeaker. The sound pressure of the left and the right loudspeaker
will therefore be equal in a wider zone, which is important for keeping a good stereo effect.
The orientation of the loudspeaker axis can also be used as a high frequency selector: on axis the level is the
highest.
reduction of sound pressure
(medium-high frequency)
© by KLANGWERK GmbH, Zürich, Switzerland
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100°
60°
reduction of sound pressure
(medium-high frequency)
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60°
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