An Ironless Low Frequency Subwoofer Functioning under Its Resonance Frequency

Merit B, Lemarquand G, Nemoff B. An Ironless Low Frequency Subwoofer Functioning under Its Resonance Frequency. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7534. Available from: https://aes.org/publications/elibrary-page/?id=14686

@inproceedings{Merit2008_14686,
  author = {Merit, Benoit and Lemarquand, Guy and Nemoff, Bernard},
  title = {{An Ironless Low Frequency Subwoofer Functioning under Its Resonance Frequency}},
  booktitle = {AES Convention 125},
  note = {Paper 7534},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14686}
}

TY  - CPAPER
TI  - An Ironless Low Frequency Subwoofer Functioning under Its Resonance Frequency
AU  - Merit, Benoit
AU  - Lemarquand, Guy
AU  - Nemoff, Bernard
T2  - AES Convention 125
M1  - Paper 7534
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14686
PB  - Audio Engineering Society
LA  - en
AB  - A low frequency loudspeaker (10Hz-100Hz) is described. Its structure is totally ironless in order to avoid nonlinear effects due to the presence of iron. The large diaphragm and the high force factor of the loudspeaker lead to its high efficiency. Efforts have been made for reducing the non-linearities of the loudspeaker for a more accurate sound reproduction. In particular we have developed a motor totally made of permanent magnets, which create a uniform induction across the entire intended displacement of the coil. The motor linearity and the high force factor of this flat loudspeaker make it possible to function under its resonance frequency with a great accuracy.
ER  -