Patent ID: 8469140

Claim:
A loudspeaker system assembly comprises: at least a first cone loudspeaker having a radiating diaphragm; a compression plug having a first surface juxtaposed to the radiating diaphragm of the first cone loudspeaker and a perimeter surface encircling the first surface; outlet ports from the compression plug arranged in a circular band on the perimeter surface; inlet ports on the first surface; channels connecting the inlet ports to the outlet ports for coupling acoustic energy generated by the first cone loudspeaker to the outlet ports, the channels bending through substantially ninety degrees so that acoustic energy is radiated outwardly perpendicular to a radiant axis; a waveguide section; and the waveguide section having a inwardly directed ring throat which is coupled to the outlet ports and a folded waveguide collimating sound energy emitted from the outlet ports along the radiant axis.