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Audio and Video Talk
General Discussion
Speakers causing amplifier instability
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<blockquote data-quote="Ampdog" data-source="post: 75151" data-attributes="member: 144"><p>Joel,</p><p></p><p>I take it that the loudspeakers were irreversably damaged. If they still exist, one simple move would have been to shut down immediately after the scratching appeared, and then cautiously moving the drivers by hand to find whether the scratching was still there, to reveal mechanical damage. Is that still possible?</p><p></p><p>I also presume that there was no great unbalance of factors like loudspeakers far too low-power for the amplifier; doesn't sound so. Failing that a strong contender is that the amplifier, under the specific conditions, became unstable and generated spurious super-audio oscillations. That would quickly roast the driver innards (and, sorry, I have always had my doubts regarding loudspeakers glibly stating 200+W as their power handling capability. Mm-mm).</p><p></p><p>This sounds like an interesting case. PM me for a possible look in situ; I conclude that said friend lives somewhere on the Reef?</p></blockquote><p></p>
[QUOTE="Ampdog, post: 75151, member: 144"] Joel, I take it that the loudspeakers were irreversably damaged. If they still exist, one simple move would have been to shut down immediately after the scratching appeared, and then cautiously moving the drivers by hand to find whether the scratching was still there, to reveal mechanical damage. Is that still possible? I also presume that there was no great unbalance of factors like loudspeakers far too low-power for the amplifier; doesn't sound so. Failing that a strong contender is that the amplifier, under the specific conditions, became unstable and generated spurious super-audio oscillations. That would quickly roast the driver innards (and, sorry, I have always had my doubts regarding loudspeakers glibly stating 200+W as their power handling capability. Mm-mm). This sounds like an interesting case. PM me for a possible look in situ; I conclude that said friend lives somewhere on the Reef? [/QUOTE]
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Audio and Video Talk
General Discussion
Speakers causing amplifier instability
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