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Amplifiers
Setting Gain on a PG Xenon
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<blockquote data-quote="jrvette94" data-source="post: 1159695" data-attributes="member: 562584"><p>I misspoke in the above post. The amp's power is constant for each load. If the power is constant and the load changes, then the voltage must change as well for different loads.</p><p></p><p>For Example:</p><p></p><p>P=400 watts</p><p></p><p>I = 4ohm, 2 ohm, 1 ohm</p><p></p><p>@ 4ohm, V = 40</p><p></p><p>@ 2ohm, V = 28.28</p><p></p><p>@ 1ohm, V = 20</p><p></p><p>The question still remains, how do you set the gain when the voltage changes based on load? The only thought I have is to use a dummy resistor that matches the speaker, then you could use the DMM to set the gain, but I can't find a 600watt resistor to use.</p></blockquote><p></p>
[QUOTE="jrvette94, post: 1159695, member: 562584"] I misspoke in the above post. The amp's power is constant for each load. If the power is constant and the load changes, then the voltage must change as well for different loads. For Example: P=400 watts I = 4ohm, 2 ohm, 1 ohm @ 4ohm, V = 40 @ 2ohm, V = 28.28 @ 1ohm, V = 20 The question still remains, how do you set the gain when the voltage changes based on load? The only thought I have is to use a dummy resistor that matches the speaker, then you could use the DMM to set the gain, but I can't find a 600watt resistor to use. [/QUOTE]
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Setting Gain on a PG Xenon
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