You got that right, as sold off 8 aluminum cone Bozak Zc tweeters a few years ago, and youd've thought they were made of gold.I have and have listened to many of the soft & hard dome types, a few EMITs, Heil AMT, a ribbon or two plus a few 'lowly' old fashioned paper cones such as CTS phenolic dome & JBL's LE-26, etc. Most sound fine to me if properly implemented. Anyhow, please don't toss those better paper cone CTS & JBL tweeters in the trash! They will get snatched up fast on eBay at the right price and the CTS in particular make for great DIY vintage speaker projects.