Design and Implementation of a High Efficiency Subwoofer

Tengvall S, Iversen NE, Knott A. Design and Implementation of a High Efficiency Subwoofer. In: AES Convention 144. Audio Engineering Society; 2018. Paper 9911. Available from: https://aes.org/publications/elibrary-page/?id=19428

@inproceedings{Tengvall2018_19428,
  author = {Tengvall, Sebastian and Iversen, Niels Elkjær and Knott, Arnold},
  title = {{Design and Implementation of a High Efficiency Subwoofer}},
  booktitle = {AES Convention 144},
  note = {Paper 9911},
  year = {2018},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19428}
}

TY  - CPAPER
TI  - Design and Implementation of a High Efficiency Subwoofer
AU  - Tengvall, Sebastian
AU  - Iversen, Niels Elkjær
AU  - Knott, Arnold
T2  - AES Convention 144
M1  - Paper 9911
PY  - 2018
DA  - 2018/05/06
UR  - https://aes.org/publications/elibrary-page/?id=19428
PB  - Audio Engineering Society
LA  - en
AB  - The demand for battery driven loudspeakers is increasing but the challenge of efficient low frequency reproduction remains. An alternative approach to the conventional 4th order bandpass enclosure design for a subwoofer to achieve a high peak in the passband and increase voltage sensitivity is investigated. The response is corrected with DSP to ensure a flat response in the passband. The results proved that this approach can increase the voltage sensitivity dramatically, reaching an average sensitivity of over 100 dB in the passband from 45 Hz to 90 Hz. It also showed that the design is sensitive to construction errors. Precise assembling is required to achieve satisfactory results while small errors can ruin the purpose of the design.
ER  -