Power And Acoustic Pressure; The Listening Room; Technical Specifications - Dali Alteco C-1 Manuel

8.0 P OW E R A N D AC O u ST I C P R E S S u R E
How loud a speaker is able to play and still sound good is completely dependent on the signal
it has to reproduce. So, in practice, it is not possible to define an unequivocal level for use in
comparing different speakers.
Lots of pure, undistorted output from a large amplifier is better than a distorted signal from a
small amplifier stretched beyond its capacity. 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 tweeter. consequently, speakers are often damaged by small amplifiers,
having to work too hard - and very rarely by large amplifiers, which are practically running idle.
It is worth noting that turning tone controls above the neutral setting significantly burdens
both speakers 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. DALI recommends the tone controls generally be set to the neutral position, and
to achieve your desired sound image through correct positioning of the speakers. Ensuring that
you keep the volume low enough for the sound to remain clear and undistorted will minimize
the strain on both 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 ST E N I N G RO O M
Every room has its own distinctive acoustics, which influence the way we experience sound
from a speaker. the sound you hear consists of direct sound from the speakers and reflected
sound from the floor, ceiling and walls. the latter will affect how you experience the sound.
As a basic rule, try to avoid large, hard and reflective areas in the immediate vicinity of your
loudspeakers as it will typically cause strong reflections, which might disturb the precision and
spatial effect of the sound reproduction. reflection might be suppressed by positioning e.g. a
plant between the speaker and the reflecting surface. Soft items such as carpets, curtains etc.
might help if the sound is too bright. Both the amount and quality of the deep bass depend on
the size and shape of the room, and the position of the speakers. Positioning the speakers near
a side or back wall will accentuate the bass.
A corner location will accentuate it even more, but will also increase the reflections.
1 0.0 T E C H N I CA L S P E C I F I CAT I O N S
In table 2 you will find the most common specifications for our speakers. Please have in mind
that there are countless methods for measuring speakers. However, none of them tell you
anything useful about how a speaker really sounds. Only your ears can decide whether one
speaker sounds better than another. Like all our speakers, DALI ALtEcO series is designed to
reproduce music as honestly as possible.
Enjoy your new DALI ALtEcO!
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