Alright, in this show will just going to show parts of the speaker. Here you actually you have the speaker itself. This pit in the center is called the dusk cover. Basically, stops spits of dust getting into the magnets. Here you the coil. So, if you notice on a speaker you have two wires, positive and negative. So, basically what happens is if you imagine my finger here is a positive and on my finger here is the negative like so what happens is the positive will go around, around, around, around and around. Quite a few times and then eventually that piece of wire will end up here is the negative can come out, okay. Here is the spider, this here is actually attached just above the magnet. Well back does is this actually keeps the coil in place in the right position in between the two magnets. So, what happens these moves up and down like so, okay. Here is the sash, this holds everything together. Terminals, positive, negative very often red and black. Here we can see a sticker eight homes and inside there you have got your magnets. Now open shaft not to show exactly which one is which and inside that were my fingers is you can just about see it is a gap, that is where the coil sits. On the coil should not touch either side, it has to sit perfectly in the middle of that. As soon as it starts rubbing against one of these magnets. Eventually, what will happen it will rub and rub and rub and just basically stop working, okay. So, this is another reason why you need to look after your speakers, okay. Do not over power them because remember this thing would not last forever, okay.
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