neonblack wrote:ADS went out of business last year.
I'm aware of that.. That is why I said it might be hard for you to find them.
Search the web, you might find a replacement tweeter floating around...
If not, I think you could still find a complete set floating around.
Otherwise you can try different tweeter, Maybe if you opened up your passsive xover to see what components are in it, and get an idea of xover points so you can look for a good matching tweeter. Another thing to consider is sensitivity, so you might want to add an lpad if your new tweet is more sensitive.
Passive crossovers are normally designed around the equipment you use them with, so you need to be careful to say the least if you plan to swap tweeters.
Figure out any and all information you can about crossover points, crossover component/schematics, and the tweeter impedance, Re, and sensitivity.
Then we can try to find you a tweeter that fits.
You could also consider modifying the xover when you pick a new tweeter. It all really depends.