Pentagonal speaker enclosure with a downward directed dynamic damping system
US4420061A · kind A · utility
7Cited by
2References
9Claims
0Family size
Inventor
Key dates
| Filing date | Nov 3, 1980 |
| Grant date | Dec 13, 1983 |
| Priority date | — |
| Expiry date | Nov 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2834
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker enclosure with a pentagonal cross section and sloping sides contains a dynamic damping system located in the lower portion of the enclosure. Speakers mounted in the side walls are always positioned opposite a corner to prevent the production of standing waves. The rearward projection from the speaker and reflections from the walls are directed downward to the dynamic damping system, eliminating the absorptive padding used in prior systems and its inherent loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.