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NI. EL. Iversen, and A. Knott, "Loudspeaker Impedance Emulator for Multi Resonant Systems," Paper 9289, (2015 May.). doi: NI. EL. Iversen, and A. Knott, "Loudspeaker Impedance Emulator for Multi Resonant Systems," Paper 9289, (2015 May.). doi:
Abstract: Specifying the performance of audio amplifiers is typically done by playing sine waves into a pure ohmic load. However real loudspeaker impedances are not purely ohmic but characterized by its electrical, mechanical, and acoustical properties. Therefore a loudspeaker emulator capable of adjusting its impedance to that of a given loudspeaker is desired for measurement purposes. An adjustable RLC-based emulator is implemented with switch controlled capacitors, air gap controlled inductors, and potentiometers. Calculations and experimental results are compared and show that it is possible to emulate the loudspeaker impedance infinite baffle-, closed box-, and the multi resonant vented box-loudspeaker by tuning the component values in the proposed circuit. Future work is outlined and encouraged that the proposed impedance emulator is used as part of a control circuit in a switch-mode based impedance emulator.

@article{iversen2015loudspeaker,
author={iversen, niels elkjær and knott, arnold},
journal={journal of the audio engineering society},
title={loudspeaker impedance emulator for multi resonant systems},
year={2015},
volume={},
number={},
pages={},
doi={},
month={may},} @article{iversen2015loudspeaker,
author={iversen, niels elkjær and knott, arnold},
journal={journal of the audio engineering society},
title={loudspeaker impedance emulator for multi resonant systems},
year={2015},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={specifying the performance of audio amplifiers is typically done by playing sine waves into a pure ohmic load. however real loudspeaker impedances are not purely ohmic but characterized by its electrical, mechanical, and acoustical properties. therefore a loudspeaker emulator capable of adjusting its impedance to that of a given loudspeaker is desired for measurement purposes. an adjustable rlc-based emulator is implemented with switch controlled capacitors, air gap controlled inductors, and potentiometers. calculations and experimental results are compared and show that it is possible to emulate the loudspeaker impedance infinite baffle-, closed box-, and the multi resonant vented box-loudspeaker by tuning the component values in the proposed circuit. future work is outlined and encouraged that the proposed impedance emulator is used as part of a control circuit in a switch-mode based impedance emulator.},}

TY - paper
TI - Loudspeaker Impedance Emulator for Multi Resonant Systems
SP - EP -
AU - Iversen, Niels Elkjær
AU - Knott, Arnold
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2015 TY - paper
TI - Loudspeaker Impedance Emulator for Multi Resonant Systems
SP - EP -
AU - Iversen, Niels Elkjær
AU - Knott, Arnold
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2015
AB - Specifying the performance of audio amplifiers is typically done by playing sine waves into a pure ohmic load. However real loudspeaker impedances are not purely ohmic but characterized by its electrical, mechanical, and acoustical properties. Therefore a loudspeaker emulator capable of adjusting its impedance to that of a given loudspeaker is desired for measurement purposes. An adjustable RLC-based emulator is implemented with switch controlled capacitors, air gap controlled inductors, and potentiometers. Calculations and experimental results are compared and show that it is possible to emulate the loudspeaker impedance infinite baffle-, closed box-, and the multi resonant vented box-loudspeaker by tuning the component values in the proposed circuit. Future work is outlined and encouraged that the proposed impedance emulator is used as part of a control circuit in a switch-mode based impedance emulator.