Acoustic Design - Our waveguide horn throat is engineered for proper acoustic loading, enhancing overall performance and reducing distortion risks.wide Enclosure Compatibility - This horn throat is compatible with a variety of compression driver designs and speaker enclosures, making it suitable for multiple applications.durable Coating - The exterior is treated with a protective coating that shields the waveguide from corrosion, Uv rays, and wear over time.versatile Application - Ideal choice for outdoor events, stadiums, and any location where weather conditions are rough.Waveguide Horn Throat Specification-Color- BlackMaterial- ABSDimension- 3X7 InchThroat compatibility- 18 TPIWeatherproof- YesPackage Includes-4x Horn Throat