Quick OverviewAffordable, durable horns for demanding sound reinforcement applications. Product Highlights Large horn mouth extends response to lowest possible frequency Weatherproof aluminum construction Stainless steel hardware for long service life Suitable for indoor or outdoor installations Standard 1-3/8"-18 threaded throat Product Manuals / Spec Sheets / Downloads Dayton Audio RPH20 User Manual AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description Affordable, durable horns for demanding sound reinforcement applications. The re-entrant style horn flare design provides an expansion path that is longer than conventional straight horns; this ensures that the lowest possible frequency response can be achieved. The Dayton Audio RPH20 PA horns are formed from lightweight aluminum and painted with a durable polyester finish, so you know that they will survive years of exposure to sun and rain. Great for indoor or outdoor applications, sturdy mounting yoke for precise alignment included. Standard 1-3/8"-18 threaded throat; 20" mouth diameter, 13" depth. Product Details Model Number RPH20 List Price $68.5 Color Gray Unit of Measure Each UPC 844632008030 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 7 Product Weight -- Product Height -- Product Width 20" Product Length -- Product Depth 13"