Patent Number: 7,708,112

Title: Waveguide phase plug

Abstract: An improved horn for a compression driver which has an interior foam plug for reducing the amplitude of unwanted non-fundamental wave propagation and better control over the sound radiation pattern of the device.

Inventors: Geddes; Earl Russell (Northville, MI)

Assignee:

International Classification: G10K 11/04 (20060101)

Expiration Date: 5/04/12018