PASSIVE ACOUSTIC RADIATING

摘要

According to the invention there is provided an acoustic device, comprising, an acoustic enclosure bounded by a three dimensional bounding figure said enclosure having walls defining an enclosure interior volume, an acoustic driver having a first surface and a second surface about a first axis, wherein said acoustic driver is mounted in said acoustic enclosure so that said first surface faces said interior volume, a cavity in said acoustic enclosure lying substantially within said bounding figure, and a first passive radiator having a first surface and a second surface and an intended direction of motion along a second axis, mounted in said acoustic enclosure so that said first passive radiator first surface faces said cavity and said passive radiator second surface faces said enclosure interior, wherein said acoustic enclosure is constructed and arranged so that all acoustic paths between said acoustic driver first surface and said cavity include said first passive radiator.
The passive radiators are arranged so that the net mechanical vibration is minimized.