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.