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General Car Audio
Question about Gain setting
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<blockquote data-quote="shovelhd" data-source="post: 2810650" data-attributes="member: 573327"><p>The amp gain control changes the signal level to the output section of the amp where the power is made.</p><p></p><p>Let's say your head unit starts to distort at 28/35, so you'll want to set the gains with the HU at 26/35. Let's also say that at 26/35 with a 500Hz 0dB tone, your HU output is .75 volts. Finally, let's say that your amp makes full rated RMS power with a 1V input voltage. Turning up your amp gain control makes up the .25V difference by boosting the input voltage that your HU can't put out cleanly. It's not a volume control, it's a voltage gain control, and it should be used sparingly.</p><p></p><p>As others have said, set the amp gains to match what you feel your speakers can handle.</p></blockquote><p></p>
[QUOTE="shovelhd, post: 2810650, member: 573327"] The amp gain control changes the signal level to the output section of the amp where the power is made. Let's say your head unit starts to distort at 28/35, so you'll want to set the gains with the HU at 26/35. Let's also say that at 26/35 with a 500Hz 0dB tone, your HU output is .75 volts. Finally, let's say that your amp makes full rated RMS power with a 1V input voltage. Turning up your amp gain control makes up the .25V difference by boosting the input voltage that your HU can't put out cleanly. It's not a volume control, it's a voltage gain control, and it should be used sparingly. As others have said, set the amp gains to match what you feel your speakers can handle. [/QUOTE]
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Question about Gain setting
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