system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does the decibel value on my stereo decrease as I increase volume?
gpt
Your stereo is telling you what it's actually doing.  The amplifier runs at full power, and the stereo reduces the output signal with a resistor, so it's reporting how many decibels of reduction it's applying, since it's reducing the power the decibels are shown as negative, and decrease as you reduce the amount of power dissipation applied.