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Úrok
4,9 %
p. a.
In instalments
from
274,-
In instalments
from
245,-
In instalments
from
187,-
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from
250,-
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from
400,-
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375,-
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300,-
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650,-
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4,755,-
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3,755,-
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975,-
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240,-
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270,-
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441,-
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390,-
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from
275,-
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418,-
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353,-
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775,-
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425,-
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from
530,-
In instalments
from
382,-
In instalments
from
200,-
Speakers are electro-acoustic transducers. The scientific name tells us that the speaker is a device that converts electrical impulses into sound. It consists of a magnet and a diaphragm for converting electrical signals to sound waves, then radiate them into the air.
The human ear can hear sounds at frequencies from 20 Hz to 20 kHz. Therefore, speakers are constructed to encompass this ideal sound spectrum. The lower the frequency, the deeper the tone. It is very effective for movies with action and explosions etc., and for listening to music with deep bass and drums.