How does a subwoofer work?

Question

Ive been trieing to figure out how they work but i really dont know. So how do they work.please be specicfic

Answer 1

Generally speaking, they low-pass filter frequencies under about 100 hertz, and send those to an amplifier that drives a large speaker cone in a resonant cabinet.

Because the low range in audio is fairly directionless and not phase-sensitive, only one driver is necessary and left/right or front/rear placement on the soundstage is non-critical in most home theater applications.

Answer 2

The subwoofer creates its sound by utilising transferring forward and backward. Deeper bass notes and better volumes require it to go greater. There are limits to how some distance it may flow, despite the fact that, with out harm to the sub. The air trapped interior a subwoofer container facilitates administration the action of the cone. because of the fact the cone strikes in or out, the changing air rigidity interior the container resists the action of the sub. The further the cone strikes from its relax place, the greater effective the air rigidity forcing it back to midsection. Subwoofer producers are in accordance with this air rigidity while they observe a potential score to the sub. in case you employ a greater container than reported, the air rigidity keeping the sub below administration would be lessened. in case you do not use a container in any respect, then employing too a lot potential to the sub would rigidity it previous its mechanical obstacles, inflicting harm to the suspension. once you're utilising a ported container, then bass notes under the port frequency will reason the sub to react as though that's not in a container in any respect. that's why subs in ported packing containers could be used with subsonic filters, to maintain the backside frequencies from attaining the subwoofer. Sealed packing containers have not got this weak spot. some subs are designed for unfastened air use. they have a tendency to have a greater effective, stiffer suspension, so they don't require the trapped air to damp the cone circulation. despite the fact that, the stiffer suspension means they don't enable as a lot day trip and regularly won't play as deep bass as a sub in an enclosure. As for basically-powering, it would not harm subwoofers in any way. in case your amplifier/subwoofer mixture grants the quantity you prefer, with out producing severe distortion, then that's not suitable if the amp potential score isn't as severe because of the fact the sub's potential score.

Answer 3

Sub Woofers Basically Produce ULTRA LOW Frequency Sound. Most People Can't Hear These Frequencies But, They Add 'Depth' To The Sounds Produced By The Other Speakers. However, You Can Feel These Sounds (The Low 'Rumble' Of A Train) So They Add Extra Realism To Movie Soundtracks.

Answer 4

The same way as any other loudspeaker.

They consist of a coil suspended in a magnetic field and rely on what is called the "motor-generator effect".

A Google search should give you leads to an explanation of it.