Small Signal Loudspeaker Impedance Emulator

Iversen NE, Knott A. Small Signal Loudspeaker Impedance Emulator. J Audio Eng Soc. 2014;62(10):676-682. doi:10.17743/jaes.2014.0036

@article{Iversen2014_17545,
  author = {Iversen, Niels Elkjær and Knott, Arnold},
  title = {{Small Signal Loudspeaker Impedance Emulator}},
  journal = {Journal of the Audio Engineering Society},
  volume = {62},
  number = {10},
  pages = {676--682},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2014.0036},
  url = {https://doi.org/10.17743/jaes.2014.0036}
}

TY  - JOUR
TI  - Small Signal Loudspeaker Impedance Emulator
AU  - Iversen, Niels Elkjær
AU  - Knott, Arnold
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 62
IS  - 10
SP  - 676
EP  - 682
PY  - 2014
DA  - 2014/10/06
DO  - 10.17743/jaes.2014.0036
UR  - https://doi.org/10.17743/jaes.2014.0036
PB  - Audio Engineering Society
LA  - en
AB  - In order to properly evaluate a loudspeaker amplifier, it is useful to test its performance under realistic conditions. This implies a load that emulates the complex impedance of an actual loudspeaker driver with its interacting mechanical resonances. A loudspeaker emulator is therefore a useful tool to replace a fixed resistor. Results from an experimental emulation validate the utility for small signals at low frequencies. The design allows the resonant frequencies to be changed by tuning two resistors. Even though the emulation does not exactly match an actual driver, suggestions are provided to improve the approximations.
ER  -