system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Does more volume from a speaker use more energy?

For example, when you're listening to music in the car. If the volume is fairly low in the car, will it use less of the car's battery as opposed to having the music blasted?
gpt
Yes. Every 3dB increase in sound pressure level corresponds to a doubling of output power. For a speaker with an 89 dB reference efficiency, this means that 1 Watt produces 89 dB, 92 dB requires 2 Watts, 95 dB 4 Watts, 98 dB 8 Watts, 101 dB 16 Watts, and so forth.