# Amp Gain Products like DAC/AMP and AMP often feature switches that allow you to adjust the amplifier's gain. ### Amplifier Gain An amplifier is a component that amplifies voltage and current. The gain of the amplifier, which determines how much amplification occurs, can be adjusted by the hardware resistance values. $$ V\_o = Gain \* V\_i $$ When the amplifier's gain is 1 (unit gain) or higher, the noise from the output stage becomes more pronounced than the system's background noise. In other words, if the gain is too high, unwanted noise may increase, so it's recommended not to set it too high. A lower gain setting can be beneficial if the output level is sufficient. This setting helps avoid increased unnecessary noise and ensures that the sound quality remains optimal. Hardware resistance values adjust the amplifier's gain, and setting the appropriate gain is crucial because it directly affects the output sound quality. Therefore, users should avoid setting the amplifier's gain too high and, when necessary, opt for a lower gain setting to maintain cleaner sound quality. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc-kr.qudelix.com/general/amp-gain.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.