I bought a pair of LX5's new at an RS blowout closing sale. When I got home I realized I had one 4061 and one 4061A. I just replaced the woofers with these:
https://www.madisoundspeakerstore.com/approx-5-woofers/hi-vi-l5-8r-5-woven-kevlar-cone-woofer/
The only differences that I could spot...