It may very well be a tweeter not the crossover. My brother had those speakers and the tweeter went out. Replacements for his were quite expensive, like $800 a pair.
I have a pair of B&W 801 Matrix 2. One of the crossovers burnt out. What am I to do?
Since I purchased these speakers I became disabled and live on $ 1000 a month. I need an inexpensive fix. Or are they just expensive junk. This incident broke my heart. Do I just quit? My music is a huge part of my life. What can I do?