A professional pro-audio high-frequency compression driver mounted to a line-array horn waveguide.The top cylindrical segment houses a high-power tweeter driver (often utilizing a lightweight neodymium or heavy-duty ferrite magnet). The ribbed aluminum top casing functions as a heatsink to dissipate heat during high-output performance.The bottom flared section converts the spherical sound waves generated by the driver into a flat, coherent linear wave. This specific shape prevents phase cancellation and provides controlled, narrow vertical dispersion with wide horizontal coverage, which is essential for uniform sound projection in multi-cabinet line-array speaker systems.