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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: 75311" data-attributes="member: 144"><p>That is exactly the point. Hearing sensitivity adjusts itself depending on the loudness of the environment, and as said elsewhere, therefore a subjective change in loudness can be a quite different electrical ratio depending. Yet Ohm's Law is not variable. Doubling in power is so much increase in heat dissipated, whatever the auditory circumstances. In plain Engrish: a loudspeaker could be burnt out by an almost imperceptable change in loudness, depending under what conditions that loudness is judged.</p><p></p><p>[It might be prudent to add for the uninitiated, that of all that wonderfully distortionless expensive power you pump into your loudspeaker, only about 1% - 2% gets converted to sound. The other 98 - 99% goes into brute roasting heat! Thus my previous example: Put a say 100W (or 200W or 300W) heater inside your perhaps small bookshelf loudspeaker cabinet, and watch the result!? I think one can guess without the need to perform said destructive experiment. OK, simplified - but just to show what is at stake (or steak, well-done?).]</p></blockquote><p></p>
[QUOTE="Ampdog, post: 75311, member: 144"] That is exactly the point. Hearing sensitivity adjusts itself depending on the loudness of the environment, and as said elsewhere, therefore a subjective change in loudness can be a quite different electrical ratio depending. Yet Ohm's Law is not variable. Doubling in power is so much increase in heat dissipated, whatever the auditory circumstances. In plain Engrish: a loudspeaker could be burnt out by an almost imperceptable change in loudness, depending under what conditions that loudness is judged. [It might be prudent to add for the uninitiated, that of all that wonderfully distortionless expensive power you pump into your loudspeaker, only about 1% - 2% gets converted to sound. The other 98 - 99% goes into brute roasting heat! Thus my previous example: Put a say 100W (or 200W or 300W) heater inside your perhaps small bookshelf loudspeaker cabinet, and watch the result!? I think one can guess without the need to perform said destructive experiment. OK, simplified - but just to show what is at stake (or steak, well-done?).] [/QUOTE]
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Audio and Video Talk
General Discussion
Speakers causing amplifier instability
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