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Coil rub cause amp to blow?
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<blockquote data-quote="Doxquzme" data-source="post: 8855236" data-attributes="member: 689267"><p>Not a term, a description. When it clips, it sends a distorted signal (current) through. A square wave contains more energy than a sine wave and when sent to a speaker this energy will either go to the same driver as the sine wave did before it clipped, or to different driver(s) covering higher pass bands (not applicable in this discussion) If an amp is too small and is driven too hard it clips". Well, don't clip the amp. A small amp clips earlier than a big amp, sure - but don't clip the amp, never clip the amp in normal listening environments, no reason to in my opinion.</p><p></p><p>Small amplifiers can fry a speaker, trying to play a signal of amplitude X, but clipping it (whereas a larger amp would play amplitude X unclipped), is because the clipping might direct part of the energy to higher pass bands and fry them. It won't fry the same lowest pass band driver that would survive a larger amp playing the same signal unclipped, because in total the amount of energy is smaller with the little clipping amp - not larger, and not even as large. A, there is that as one poster indicated. Does not mean that a small amp can't, but usually won’t, even to clipping. It will still fry drivers of higher pass bands, yes, but not because of Direct Current, sorry, misspoke. That said, I don’t think its good advice to give the average Joe that controlled clipping is a good thing, for most it's not because they for one don’t know the potential for damage to their equipment and two don’t know how or what tools to use to measure it accurately enough to take advantage of it (and only in a subwoofer setting). My experience with damaged subs has shown more of them are blown when the sub is underpowered, not the other way around for obvious reasons. At the end of the day, got a little of topic but think that we all covered the OP's issue. If you had a sub where the coil(s) is, are rubbing (basket or magnet alignment issues), then repaired and you use it anyway, you run the risk of damaging the amp, as it appears to what has happened here. Unless you have verified that there was no damage to the VC, not worth the risk.</p></blockquote><p></p>
[QUOTE="Doxquzme, post: 8855236, member: 689267"] Not a term, a description. When it clips, it sends a distorted signal (current) through. A square wave contains more energy than a sine wave and when sent to a speaker this energy will either go to the same driver as the sine wave did before it clipped, or to different driver(s) covering higher pass bands (not applicable in this discussion) If an amp is too small and is driven too hard it clips". Well, don't clip the amp. A small amp clips earlier than a big amp, sure - but don't clip the amp, never clip the amp in normal listening environments, no reason to in my opinion. Small amplifiers can fry a speaker, trying to play a signal of amplitude X, but clipping it (whereas a larger amp would play amplitude X unclipped), is because the clipping might direct part of the energy to higher pass bands and fry them. It won't fry the same lowest pass band driver that would survive a larger amp playing the same signal unclipped, because in total the amount of energy is smaller with the little clipping amp - not larger, and not even as large. A, there is that as one poster indicated. Does not mean that a small amp can't, but usually won’t, even to clipping. It will still fry drivers of higher pass bands, yes, but not because of Direct Current, sorry, misspoke. That said, I don’t think its good advice to give the average Joe that controlled clipping is a good thing, for most it's not because they for one don’t know the potential for damage to their equipment and two don’t know how or what tools to use to measure it accurately enough to take advantage of it (and only in a subwoofer setting). My experience with damaged subs has shown more of them are blown when the sub is underpowered, not the other way around for obvious reasons. At the end of the day, got a little of topic but think that we all covered the OP's issue. If you had a sub where the coil(s) is, are rubbing (basket or magnet alignment issues), then repaired and you use it anyway, you run the risk of damaging the amp, as it appears to what has happened here. Unless you have verified that there was no damage to the VC, not worth the risk. [/QUOTE]
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Coil rub cause amp to blow?
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