About Item: 【PA Horn Throat】Offers a precise coverage angle, ensuring uniform sound projection across your entire area. 【Heavy Duty Build】Made from premium materials, the waveguide is built to withstand the toughest conditions. 【Wide Compatibility】18 TPI thread ensures compatibility with a wide range of compression drivers. 【Easy Mounting】Hassle-free installation with the included mounting bracket, suitable for indoor and outdoor use. 【Directivity Control】Provides excellent directivity control, allowing you to focus sound precisely where it's needed. PA Trumpet Horn Throat Description: The PA trumpet horn throat offers precision sound coverage across vast areas, ensuring clear, uniform, audio projection. Made from heavy duty aluminum and metal alloys, it's built to endure harsh conditions.