I believe Linn is using KEF drivers, at least in some of their speakers (I think the Linn Index do use KEF drivers as well). So I contacted KEF to see if they will have some recommendations for a center speaker match. For now I will be using Linn Unik for a center, and then I will move it to the back.
Regarding the crossover I am still experimenting - everyones recommendations are for 80Hz.
Regarding the crossover I am still experimenting - everyones recommendations are for 80Hz.