Patent ID: 6445803
Filing Date: 2002-09-03
Classification: H04R

Abstract:
A speaker comprising:a driven speaker cone, at least two radiating surfaces configured to vibrate to produce sound waves, a housing adapter supporting said at least two radiating surfaces, a first flexible suspension element adapted to directly secure a first said radiating surface to said housing adapter, a secondary flexible suspension element adapted to secure a second said radiating surface to said first radiating surface, and a support element connecting said second radiating surface to said driven speaker cone, said cone, said radiating surfaces, said housing adapter and said suspension elements enclose a sealed cavity, said first radiating surface surrounds said second radiating surface and said first suspension element is annular and directly securing and connecting said first radiating surface and said housing adapter, and said second suspension element is annular and being connected between the periphery of said second radiating surface and said first radiating surface, and said support element is a cylindrical body, connected at one end to a centre of said driven speaker cone and at the other end to said second radiating surface, said connections allowing the efficient transfer of vibrational energy from said driven speaker cone to said second radiating surface.