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Junior Varsity
Mythbusting
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<blockquote data-quote="Andrew Welker" data-source="post: 56815" data-attributes="member: 1668"><p>Re: Mythbusting</p><p></p><p>One answer is that it depends on what is clipping. Obviously, a distorted guitar isn't going to blow a speaker just due to the distortion. But, if your sub amplifier is clipping, you may well induce a thermal failure of the subwoofer. This is because clipping starts to produce significant amounts of high frequency energy. The sharper the corner that is induced, the more high frequency content that is introduced. The significant detail is that this energy is introduced well after the crossover, so it is not filtered and sent to the proper place. This leads to lots of out-of-band voltage and current being sent to the sub. This energy just turns into heat in the voice coil, since the driver can't reproduce it. It may take a while, but failure will happen if the amplifier is kept in clipping all night.</p><p></p><p>When the distortion or different waveform is introduced prior to the crossover, for instance as an intended source like a square wave from one of Moog's synthesizers, there is less chance of speaker failure because the crossover has a chance to send the energy where it is supposed to go.</p><p></p><p>Does that make sense? This is how underpowering a system can lead to failure, especially of the low frequency components of a system.</p></blockquote><p></p>
[QUOTE="Andrew Welker, post: 56815, member: 1668"] Re: Mythbusting One answer is that it depends on what is clipping. Obviously, a distorted guitar isn't going to blow a speaker just due to the distortion. But, if your sub amplifier is clipping, you may well induce a thermal failure of the subwoofer. This is because clipping starts to produce significant amounts of high frequency energy. The sharper the corner that is induced, the more high frequency content that is introduced. The significant detail is that this energy is introduced well after the crossover, so it is not filtered and sent to the proper place. This leads to lots of out-of-band voltage and current being sent to the sub. This energy just turns into heat in the voice coil, since the driver can't reproduce it. It may take a while, but failure will happen if the amplifier is kept in clipping all night. When the distortion or different waveform is introduced prior to the crossover, for instance as an intended source like a square wave from one of Moog's synthesizers, there is less chance of speaker failure because the crossover has a chance to send the energy where it is supposed to go. Does that make sense? This is how underpowering a system can lead to failure, especially of the low frequency components of a system. [/QUOTE]
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