What is a Passive Radiator and What Does it Do in a Sound System?

1. 1. A speaker enclosure usually contains active speaker drivers and a passive speaker driver commonly known as a passive radiator.
   2. Unlike the real active speakers within the speaker enclosure, the passive radiator does not use electric current.
   3. The active speakers have a voice coil that receives electric sound signals for projection.
   4. The sound projection process generates air pressure within the speaker enclosure.
   5.  Also called a drone cone, the passive radiator feeds off this air pressure to generate a deep resonate voice thus enriching the bass.
   6. A passive radiator uses low energy to maximize the sound output of your home theater or stereo.

Also read: What is an Amplifier and How Does it Work?

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