Grill for audio loudspeakers and the like

摘要

A grill for a loudspeaker has a relatively thick metallic plate with a loudspeaker opening and a plurality of T-shaped bars across the opening, and a relatively thin metallic plate with a loudspeaker opening and a plurality of U-shaped bars across the opening. The plates are mounted together so that the U-shaped bars are located between but spaced from the T-shaped bars to provide physical protection to and good acoustic qualities for the loudspeaker. The relatively thick metallic plate provides a good heat sink for electronic equipment.