Cleaning & Maintenance; Disposal; Power And Acoustic Pressure - Dali OPTICON Manuel D'utilisation

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6.0 CLEANING & MAINTENANCE
Clean the cabinets with a soft, dry cloth. If the cabinets are dirty, wipe with a soft cloth dipped in
all-purpose cleaner and then well wrung out. Be very careful when wiping the speaker cones,
as they are very fragile. Grille fronts can be cleaned with a clothes brush and wiped with a well
wrung, lint-free cloth and mild all-purpose cleaner.
6.1 AVOID DIRECT SUNLIGHT:
The surfaces of the speakers may fade or become discoloured over time when exposed to
direct sunlight. Therefore avoid positioning the speakers in direct sunlight.

7.0 DISPOSAL

If you want to dispose of this product, do not mix it with general household waste. There is
a separate collection system for used electronic products in accordance with legislation that
requires proper treatment, recovery and recycling. Private households in the EU member states,
Switzerland, Liechtenstein and Norway may return their used electronic products free of charge
to designated collection facilities or to a retailer (if you purchase a similar new one). If you reside
in countries not mentioned above, please contact your local authorities for the correct method
of disposal. By following this process, you will ensure that your disposed product undergoes the
necessary treatment, recovery and recycling and thus prevent potential negative effects on the
environment and human health.

8.0 POWER AND ACOUSTIC PRESSURE

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.
Therefore DALI recommends that the tone controls generally be set to the neutral position, and
you 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.
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