Installing an old set of Alpine SPX-177R components into my Tahoe, and one of the tweeters doesn't work. Continuity is great, and a different tweeter in the crossover works. What could be wrong with it, and is there any way of saving it?
The tweeter may have overheated, in which case the voice coil may have become misshapen and has stuck in the magnetic gap, while still preserving its continuity. It will be beyond saving unless you can obtain a replacement diaphragm/voice coil. It may be more convenient just to buy another tweeter.