The Sti's well known C series full range high intelligibility compact column speaker array with vertical controlled directivity for medium to large size installations. It is equipped with diffrent pieces of woofers and tweeters for the needs of installation and also thanks to its unique design you can combine diffrent C series together without using any speatial tool. This particular design permits coherent sound dispersion minimizing lobing in a very compact enclosure.The wide coverage horizontal angle and the controlled vertical dispersion allow correct sound reproduction serving a wide area and assistance in limiting feedback and reverberated sound. A speech filter can be activated for enhancing the voice frequencies and improving speech intelligibility. The crossover is designed to avoid secondary lobing creation. Mounting accessories are provided and are designed to keep the column as close as possible to the wall and simplify the installation allowing suitable tilting.