Input Current Requirements of High-Quality Loudspeaker Systems

Martikainen I, Varla A, Otala M. Input Current Requirements of High-Quality Loudspeaker Systems. In: AES Convention 73. Audio Engineering Society; 1983. Paper 1987. Available from: https://aes.org/publications/elibrary-page/?id=11775

@inproceedings{Martikainen1983_11775,
  author = {Martikainen, Ilpo and Varla, Ari and Otala, Matti},
  title = {{Input Current Requirements of High-Quality Loudspeaker Systems}},
  booktitle = {AES Convention 73},
  note = {Paper 1987},
  year = {1983},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11775}
}

TY  - CPAPER
TI  - Input Current Requirements of High-Quality Loudspeaker Systems
AU  - Martikainen, Ilpo
AU  - Varla, Ari
AU  - Otala, Matti
T2  - AES Convention 73
M1  - Paper 1987
PY  - 1983
DA  - 1983/03/06
UR  - https://aes.org/publications/elibrary-page/?id=11775
PB  - Audio Engineering Society
LA  - en
AB  - Based on an analysis of the equivalent circuit of a multiway loudspeaker, the possibility of large drive currents is predicted for a class of non-sinusoidal band and amplitude-limited signals. The current builds up as coherent sum of two parts; charging of the driver reactances, and simultaneous current drain by several drivers. The input current of three commercial loudspeaker systems was measured using a signal derived from on the analysis. The results show that a loudspeaker may draw currents three to six times larger than those calculable from the rated speaker impedance. This indicates that certain generally accepted power amplifier design criteria should be reconsidered.
ER  -