I am listening to a set tomorrow and will give you my impressions. I have asked myself the same questions. Good questions. I own the Crescendo speakers as you know. Terry L , the reviewer of the DI speaker, felt the DI was a better sounding speaker. That got my attention 🙂
I think you will also also need to hear a pair in order to make a wise decision.
I do know your amp will drive them easily based on all the comments here and elsewhere regarding how easy they are on amplifiers.