I was wondering abut that. Now the speakers have arrived. The brief instructions say that you must connect the condenser in the line. BUT NO CONDENSER IS INCLUDED. I connected the tweeters to the surround channel and zip!....help!....as I reread the description for the tweeters it sounds as if they are meant for home audio use, but their website is Pyramid car audio. the box says impedance 4/8 ohms. and "built-in capacitor crossover network and hardware"...I'm flummoxed...P.S.
Must just point out though that, unlike the very high impedance piezo tweeters I was on about, yours are 4 ohm.
That means you can't just connect them across your Altec terminals - without considering the effect on the impedance.