Patent · US Active

Nested compound loudspeaker drive unit

US8452032B2 · kind B2 · utility

1Cited by

5References

29Claims

0Family size

Assignee

Genelec Oy · FI

Inventors

Ari Varla · Iisalmi, FI
Ilpo Martikainen · Posio, FI

Key dates

Filing date	Jul 24, 2008
Grant date	May 28, 2013
Priority date	—
Expiry date	Nov 5, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04R1/323
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A nested compound loudspeaker comprising a speaker assembly chassis (11), an outer driver (18) connected to the speaker assembly chassis (11) and having an inner edge, which defines an opening in the outer driver (18) and forms a functional edge (20), and an inner driver (8) connected to the speaker assembly chassis (11) and at least partially surrounded by the opening of the outer driver (18) and the inner driver (8) having an acoustical center axis located at a distance (r) from the functional edge (20) in a radial direction (α). The distance (r) is non-constant around the acoustical center axis, wherein the distance (r) has a first value in a first radial direction (α) and a second value different to the first value in a second radial direction (α).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.