LOL. I know this is a 5-year-old post, but the answer is yes. You probably already know this though. I bought my Super Towers in 1980 as a kit. They came with the Motorola piezo supertweeters. Both the one on the front panel and the ambiance one on top. Soon after, Brian switched to these JVC "ribbon" supertweeters. I saw these tweeters for sale at a wholesale speaker shop in Los Angeles for $17 each. I called Brian, and he confirmed these were what he switched to. He told me how to change the crossovers, and I switched mine out.