The AX366 has a horn pattern of 60° x 60°. All AX enclosures, including the companion AX122 subwoofer, have an identically sized, dual trapezoidal shape. The MF/HF transducer loads into a large, common horn via a modified version of the EAW's patented Radial Phase Plug. A unique HF waveguide is integrated within the center of the phase plug. It is acoustically transparent to the MF energy while being acoustically opaque to and acting as a waveguide for the HF energy.