DS18 TX1 2″ PEI Dome Ferrite Tweeter 0.5″ VC 200 Watts Engineered and designed in the USA by DS18, the TX1 is a 2-inches PEI Dome Ferrite Tweeter, the perfect addition to help get the most out of your music. Sold as a pair, these 2 dome tweeters are powerful. The accuracy of the high frequencies reproduced by these tweeters has no comparison; making them the top choice among audio enthusiasts