Just talked with Dina on Friday and placed an order for a pair of Sierra Luna's and a Sierra duo. Super pumped to make the next step in my audio! I currently have a 5.1 set-up using Emotiva speakers (B1's LR, C1 center, E1 surrounds) which I have been enjoying, but I couldn't shake that upgrade itch. I plan to do some blind A/B listening to compare the new and old speakers in 2.1 mode. (Got a HSU VTF-15h mk2 handling bass) Couple questions for you guys:

1. What are some differences I should be listening for between the speakers?

2. What are some songs that will really showcase the abilities of the new Luna's? (Particularly the RAAL ribbons)

3. Any advice on how to handle the A/B listening?