Dali 1001, Руководство пользователя

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POWER AND SOUND PRESSURE LEVEL
A loudspeaker’s ability to “play loud” depends very much on the signal it has to
reproduce. It will therefore be practically impossible to define an unambiguous
maximum level so that the figure can be used in a sensible way.
In practice, however, you can say that a lot of pure, undistorted power from a big
amplifier is better than a distorted signal from a small amplifier pushed beyond its
limits. The signal from a distorting (clipping) amplifier contains far more high frequency
information than an undistorted signal, which puts a heavy strain on the tweeter unit.
More loudspeakers are therefore destroyed by small amplifiers working too hard
than by big amplifiers practically idling.
DYNAMICS
The focus is often solely put on how loud a loudspeaker can play, which is a pity
because some of the biggest experiences in music and movies sound are found in
the most quiet passages. Dynamics is the ability to reproduce these fine differences
very exact and then to explode in a turmoil of sounds without distortion.
DALI loudspeakers are able to reproduce these very fine details, partly because
DALI use specially developed Low Loss loudspeaker units.
A system with good dynamics can reproduce a true picture of the quality and size of
the music event, even at low levels.
Try listening at low levels. This can be a far more demanding test of the system’s
ability than playing flat out at full power. Background noises from the surroundings
must of course be kept at an absolute minimum in order to experience the full dynamics
of the system.
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By turning the tone controls up beyond the
neutral position the strain on the loudspeakers
and amplifier is increased considerably. Tone
controls are meant for brushing up an old or a
poor recording. DALI strongly recommends that
you do not use these for compensating
weaknesses in other parts of the system. Re-
positioning the loudspeakers may be just what
it takes to achieve a much more musical result.
Under normal circumstances an overload of the
amplifier causes distortion (clipping) and
reduced clarity of the sound. If you make sure
never to turn up the volume beyond the point
where the music remains pure and undistorted,
usually you should experience no problems.