https://www.ebay.com/sch/i.html?_nkw=18+Sound+Constant+Coverage+Hf+Horn+W+1+Inch+Throat+Entry&_sacat=0&_dmd=2

18 Sound Constant Coverage Hf Horn W/1 Inch Throat Entry

Regular price
$129.00
Sale price
$82.00

* Unique Eighteen Sound elliptical shape (ESS) * Flat front and compact size * Die-cast aluminum construction for best heat transfer * Uniform on-axis and off-axis frequency response * 80 Degrees x 60 Degrees horizontal and vertical constant cover