Hi, slightly cold post but I spoke to David at Common Sense Audio about 60 days ago. His website doesn't seem to indicate this but he has reduced the inventory to 15" ferrite and 8" ferrite. Everything else is new old stock, no longer being built for AN. I had built the 10" Alnico in a monitor cabinet a few years ago and have regretted selling them ever since. I wanted to build another pair and was disappointed the 10" Alnico was gone. I thought this might be constructive based on the AN references above. Happy Holidays!