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<blockquote data-quote="John Roberts" data-source="post: 40891" data-attributes="member: 126">Re: Tickling the clip lights...I have never seen a power amp with &quot;premature indication&quot; of clipping. If anything I have seen some games played with none or very little hold on clip event indication (technically not a lie) and even some with finite attack times (arguably concealing brief clip events).&nbsp; Note: since most power amplifiers use unregulated power supplies the point of actual clipping is not easy to predict from input voltage. Most actually monitor divergence between actual output voltage and what it should be, so clip indication can also display for current limiting to prevents the output from following the input.&nbsp;&nbsp; Two otherwise identical power amps playing side by side, one with a hold on clip event LEDs, and one that doesn&#039;t have any hold or has lag, could lead the uniformed consumer to believe that the amplifier under-reporting clip events had more available output power than the identical amp reporting correctly.&nbsp; Perhaps to Brian&#039;s point, clip indicators are responding to transient voltage peaks which will not correlate well with loudness or heat content of audio waveforms. JR</blockquote>

[QUOTE="John Roberts, post: 40891, member: 126"] Re: Tickling the clip lights... I have never seen a power amp with "premature indication" of clipping. If anything I have seen some games played with none or very little hold on clip event indication (technically not a lie) and even some with finite attack times (arguably concealing brief clip events). Note: since most power amplifiers use unregulated power supplies the point of actual clipping is not easy to predict from input voltage. Most actually monitor divergence between actual output voltage and what it should be, so clip indication can also display for current limiting to prevents the output from following the input. Two otherwise identical power amps playing side by side, one with a hold on clip event LEDs, and one that doesn't have any hold or has lag, could lead the uniformed consumer to believe that the amplifier under-reporting clip events had more available output power than the identical amp reporting correctly. Perhaps to Brian's point, clip indicators are responding to transient voltage peaks which will not correlate well with loudness or heat content of audio waveforms. JR [/QUOTE]

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