Schiit Vidar 2 vs Parasound A21 vs Crown XLS-2502 for Magnepan

I had an opportunity to compare all these amps for the Magnepan LRS Plus for those who may be interested. I have not yet experimented with Crown’s built in crossover system yet but it seems like an interesting feature to remove bass from the Magnepan and allocate it to the subwoofer for increased volume. I’ll experiment with that next.
 

Vidar 2 vs Parasound A21

https://www.youtube.com/watch?v=6ba7LP4JyeE

Crown XLS-2502 vs Schiit Vidar 2

https://www.youtube.com/watch?v=qVjvqlr1a-g