Dayton Audio's Designer Series DSN25F-4 1" silk dome tweeter has everything you have come to expect from the Designer Series drivers such as smooth frequency response, low distortion, good efficiency, and even a matching frame. Driver integration and crossover designs are simple with smooth response from 2,500 to 20,000 Hz and predictable roll off on the low end. The powerful Ferrofluid cooled neodymium motor provides high efficiency allowing excellent dynamics while keeping size and weight to a minimum. Finally, the DSN25F-4 includes a copper cap on the pole piece to lower distortion ensuring accurate high frequency response.