New replacement aftermarket tweeter diaphragm. Fits most XLS CLS and CLSC tweeters including the Logic by Vifa variety used in some. Comes with instructions, and a fuse bulb to protect your new tweeter. If you’re reading this, you know that the tweeters in these series were a weak point, partially because of the relatively low crossover point of the XLS crossover, so my new replacement diaphragms come with a SK3 fuse bulb, the same kind used in pro audio speakers, with soldered connectors that fit your new diaphragm, and speaker wiring. Note, this listing is for a diaphragm to repair your tweeter, not the entire tweeter. These diaphragms fit the magnets with two or four centering bumps on the magnet. I just found out that some of the TW25E tweeters used in the CLS15 may have three centering bumps on the magnet. These diaphragms will NOT fit those tweeters if the three centering bumps on your magnets are in a triangular pattern with the three alignment pins equidistant from each other. As of 6-23 I see another seller has similar looking tweeter diaphragms listed for these tweeters now. They won’t fit. There are MANY diaphragms that all look similar, but they won’t fit the alignment pins on your tweeters and have incorrect size spade lugs. The alignment pins (nubs on the magnet) are what center the voice coil in the gap. 20 years on Ebay, selling mostly speaker related stuff, and mostly Cerwin Vega, with 100% positive feedback. Will be packed securely and shipped promptly. Thanks!