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Изменения к шагу №15

Отредактированно David Hodson -

Правка одобрена автор David Hodson

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[* black] At long last we've found the [http://www.sonos.com/shop/products/play3|advertised] [http://en.wikipedia.org/wiki/Passive_radiator_(speaker)|bass radiator], a passive speaker cone secured in the very back of the case that forms an inexpensive alternative to a powered subwoofer.
[* black] Interested in knowing how thea bass radiator works? Wonder no more. Internal air pressure produced byAs the movementsmid-range drivers move back and forth, some of the speaker movessound shoots out the front, while the rest is pushed back inside the enclosure. A bass radiator and fine tunes the speakers for betterallows that low frequency performancesound to exit the enclosure in a controlled way, without taking up excess room like a port or vent does.
[* black] Interested in knowing how thea bass radiator works? Wonder no more. Internal air pressure produced byAs the movementsmid-range drivers move back and forth, some of the speaker movessound shoots out the front, while the rest is pushed back inside the enclosure. A bass radiator and fine tunes the speakers for betterallows that low frequency performancesound to exit the enclosure in a controlled way, without taking up excess room like a port or vent does.