Quantifying Loudspeakers' Power Consumption

Bouchet S, Mouton V. Quantifying Loudspeakers' Power Consumption. J Audio Eng Soc. 2022;70(7/8):601-610. doi:10.17743/jaes.2022.0019

@article{Bouchet2022_21826,
  author = {Bouchet, Solal and Mouton, Valentin},
  title = {{Quantifying Loudspeakers' Power Consumption}},
  journal = {Journal of the Audio Engineering Society},
  volume = {70},
  number = {7/8},
  pages = {601--610},
  year = {2022},
  month = jul,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2022.0019},
  url = {https://doi.org/10.17743/jaes.2022.0019}
}

TY  - JOUR
TI  - Quantifying Loudspeakers' Power Consumption
AU  - Bouchet, Solal
AU  - Mouton, Valentin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 70
IS  - 7/8
SP  - 601
EP  - 610
PY  - 2022
DA  - 2022/07/06
DO  - 10.17743/jaes.2022.0019
UR  - https://doi.org/10.17743/jaes.2022.0019
PB  - Audio Engineering Society
LA  - en
AB  - Power performance is often overlooked during speaker system design. With the rise of autonomous systems and the necessity of reducing global energy waste, it has become important to be able to compare and predict the power consumption of loudspeakers. The paper reviews the existing metrics---such as sensitivity and efficiency---extends them, and suggests new ones. Two new metrics that characterize power performance are introduced, which can take the power spectrum density of program material into account in order to adapt to real-life circumstances. They can be easily derived from impedance and frequency response measurements with simple maths and can be specified on loudspeaker datasheets. Used together, they allow performance comparison, power optimization, and energy source sizing. For each, benefits and limits are discussed, and a summary table allows a comparison of each metric characteristic.
ER  -