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8 . 0 P O W E R A N D S O U N D P R E S S U R E
How loud a loudspeaker can play and still sound good depends entirely on the signal it
has to reproduce. This means that it is not possible to define a specific signal level to
use when comparing di erent speakers.
Processing a pure, undistorted signal from a powerful amplifier is easier than
processing a distorted signal from a low-power amplifier pushed beyond its capaci .
The signal from a distorting (clipping) amplifier contains much more high-frequency
information than an undistorted signal, and therefore puts a heavy strain on the
tweeters. As a result, loudspeakers are o en damaged by low-power amplifiers
that are forced to work too hard – and very rarely by powerful amplifiers, which are
practically running idle most of the time.
It is also worth noting that turning tone controls on your amplifier above the neutral
se ing significantly burdens both loudspeakers and amplifier. On a good sound
system, tone controls should only be used to compensate for poor recordings and
not to permanently compensate for weaknesses elsewhere in the system.
For this reason, DALI recommends that the tone controls are generally set to
the neutral position. You can achieve your desired sound image by positioning the
loudspeakers correctly. Keep the volume low enough to keep the sound clear and
undistorted. This will minimise the load on the speakers and amplifier.
All DALI loudspeakers are designed with linear impedance for an optimal amplifier
load. The result is a significantly more open and detailed sonic image.
9 . 0 T H E L I S T E N I N G R O O M
Every room has its own distinctive acoustics. These a ect the way we experience
sound from a loudspeaker. The sound you hear is made up of direct sound from
the loudspeakers and reflected sound from the floor, ceiling and walls. The la er
a ects the way you experience the sound. As a general rule, try to avoid large, hard,
reflective surfaces in the immediate vicini
to cause strong reflections that can a ect the accuracy and spaciousness of the
sound reproduction. Reflections can be reduced by placing a plant between the
loudspeaker and the reflective surface. So objects such as carpets, curtains, etc.
may help if the sound is too bright. The amount and quali of deep bass depend on
the size and shape of the room and the position of the loudspeakers. Placing the
loudspeakers close to a side or back wall will emphasise the bass. Placing them in
corners will accentuate the bass even more, but will also increase reflections.
1 0 . 0 SA F E T Y P R E C A U T I O N S
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Always follow all safe guidelines.
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DALI RUBIKORE loudspeakers are intended for indoor use.
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The loudspeakers must only be used indoors and never in extreme hot or cold
temperatures.
•
DALI RUBIKORE loudspeakers must not be exposed to direct sunlight.
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