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Message: <blockquote data-quote="helotaxi" data-source="post: 2681627" data-attributes="member: 550915"><p>The functinon of the input (preamp) stage of the amp is to match the signal voltage to what the output stage needs to make full power without clipping, nothing more nothing less.  If the gain is set correctly, the voltage getting to the output stage is the same.  All the gain control does is make sure that this is so.  As long the signal voltage is within the sensitivity range of the amp the only difference between high signal voltage and low signal voltage is the s/n ratio of the signal.  No effect on the power output of the amp or its efficiency.</p></blockquote><p></p>

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