Bernie ,you have newer lascalla,s .pre 81,s had k55v mids old or newer lascalla,s are hard to beat for there sound.l have 2 lascala,s & 6 herey,s ll l like them all l have owned the lascala model since 78, l would like to own k horns as soon as l can find a mint set.the tweeters you are testing do they have round mag, sounds like there k-77,s.let me which one is better.