Initially I was using Focal Diablo Utopia III speakers but lately I prefer the musicality of Harbeth M30.2. I still use Focal Diablo for multi-channel.
Active crossover changed to JL Audio CR1, which is more transparent compared to Bryston 10B-SUB and without any hissing noise of the 10B.
Interesting insight on the Scala and Maestro. I was considering the Scalas but I recently re-voiced my system with new power cords. Great change without breaking the bank.