Dual compression driver with single magnet

A dual compression driver, comprising:

• a first driver assembly including a first annular diaphragm disposed about a central axis, a first phasing plug disposed coaxially below the first annular diaphragm and having a first inner edge, and a first top plate disposed coaxially above the first annular diaphragm, the first phasing plug including a first plurality of apertures extending therethrough;
• a second driver assembly including a second annular diaphragm disposed about the central axis, a second phasing plug disposed coaxially above the second annular diaphragm and having a second inner edge, and a second top plate disposed coaxially below the second annular diaphragm, the second phasing plug including a second plurality of apertures extending therethrough;
• a shared annular magnet disposed between the first top plate and the second top plate;
• a back cover mounted to the first phasing plug, wherein the back cover and the first phasing plug form a first acoustic pathway for acoustic signals from the first plurality of apertures;
• and
• a front adapter mounted to the second phasing plug and having a hollow conduit formed therein along the central axis and defining a circular exit of the dual compression driver, wherein the front adapter and the second phasing plug form a second acoustic pathway for acoustic signals from the second plurality of apertures,
• wherein the first inner edge and the second inner edge are adjacent to each other such that the first acoustic pathway and the second acoustic pathway converge at a central bore of the dual compression driver, such that acoustic signals from the first plurality of apertures and acoustic signals from the second plurality of apertures radiate inward toward the central bore then merge and radiate through the hollow conduit to the circular exit.

A dual compression driver, comprising:

• a first driver assembly including a first annular diaphragm disposed about a central axis, and a first phasing plug disposed coaxially below the first annular diaphragm, the first phasing plug including an input side oriented toward the first annular diaphragm and an output side oriented away from the first annular diaphragm, the first phasing plug including a first plurality of apertures extending therethrough, wherein the first phasing plug has an outer portion and an inner portion joined by an intermediate portion, wherein the outer portion is generally planar, the intermediate portion has an inclined section and a flat section, and the inner portion is generally sloped and terminates in a first inner edge;
• a second driver assembly including a second annular diaphragm disposed about the central axis, and a second phasing plug disposed coaxially above the second annular diaphragm, the second phasing plug including an input side oriented toward the second annular diaphragm and an output side oriented away from the second annular diaphragm, the second phasing plug including a second plurality of apertures extending therethrough, wherein the second phasing plug has an outer portion and an inner portion joined by an intermediate portion, wherein the outer portion is generally planar, the intermediate portion has an inclined section and a flat section, and the inner portion is generally sloped and terminates in a second inner edge;
• a shared annular magnet disposed between the first driver assembly and the second driver assembly;
• a back cover mounted to the first phasing plug, wherein an inner surface of the back cover and the output side of the first phasing plug form a first acoustic pathway for acoustic signals from the first plurality of apertures;
• and
• a front adapter mounted to the second phasing plug and having a hollow conduit formed therein along the central axis, the hollow conduit having a bottom end adjacent to the second phasing plug and a top end defining a circular exit of the dual compression driver, wherein an inner surface of the front adapter and the output side of the second phasing plug form a second acoustic pathway for acoustic signals from the second plurality of apertures,
• wherein the first inner edge and the second inner edge are adjacent to each other such that the first acoustic pathway and the second acoustic pathway converge and acoustic signals from the first plurality of apertures and acoustic signals from the second plurality of apertures merge and radiate through the hollow conduit to the circular exit.