When I owned the Muse 18 Kevin would not sell me the personality card. He was very rude and told me I would have to purchase it from a Muse dealer.
My speakers at the time were Martin Logan CLS. They were also Kevin's speaker and he claimed the personality card was especially well tuned to that speaker, but the CLS sounded much better without the Muse.
The Muse 18 is a good subwoofwe if you want to see your floor become a blur, but musically satisfying it is not. I achieved better results with a Vandersteen 2W and REL subwoofers.