Achieving Real Bandwidth Beyond 20 kHz with a Loudspeaker System

Harris N. Achieving Real Bandwidth Beyond 20 kHz with a Loudspeaker System. In: AES Conference: 31st International Conference: New Directions in High Resolution Audio. Audio Engineering Society; 2007. Paper 6. Available from: https://aes.org/publications/elibrary-page/?id=13971

@inproceedings{Harris2007_13971,
  author = {Harris, Neil},
  title = {{Achieving Real Bandwidth Beyond 20 kHz with a Loudspeaker System}},
  booktitle = {AES Conference: 31st International Conference: New Directions in High Resolution Audio},
  note = {Paper 6},
  year = {2007},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13971}
}

TY  - CPAPER
TI  - Achieving Real Bandwidth Beyond 20 kHz with a Loudspeaker System
AU  - Harris, Neil
T2  - AES Conference: 31st International Conference: New Directions in High Resolution Audio
M1  - Paper 6
PY  - 2007
DA  - 2007/06/06
UR  - https://aes.org/publications/elibrary-page/?id=13971
PB  - Audio Engineering Society
LA  - en
AB  - There are now quite a number of so-called “super tweeter” products on the market, all claiming bandwidth beyond 20 kHz. However, this bandwidth is typically achieved only within a few degrees of the loudspeaker axis, and the real power bandwidth is much lower. The limiting factor in all piston-based designs is the “ka = 2” relationship between wave-number and radius. At 20 kHz, this results in the requirement that a is about 5 mm. By removing the requirement for the diaphragm to move as a piston, the “Balanced Mode Radiator (BMR)” allows the use of larger diaphragms, making the possibility of real power bandwidth beyond 20 kHz a practical reality.
ER  -