They dont really have an ohm load cause they are peizo but when measured they read about .8uf capacitor. They have a sensitivity of 96db(The ti's have a sen's of 115db). Their rated power handiling is 100wrms and 400watts peak(ti's cant handle anywhere near as much), And they can handle that too!!!
Again I can go on for days and days about these horns and how much I love them but I will spare you!!! If you have any more questions at all please ask and I will answer them the best I am able too.