ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,225,346, issued on Feb. 11.
"Multiple-driver adapter having plane wave equalizer" was invented by Jong Bae Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multiple-driver adapter having a plane wave equalizer according to the present invention may include: a cube body; a high-pitched driver provided on one surface of the cube body and a medium-pitched driver provided on the other surface; a horn unit vertically disposed in the high-pitched driver and the medium-pitched driver, and partially disposed at output units of the high-pitched and medium-pitched drivers, and having a fore end exposed to one surface of the cube body; and ...