@drambuiequillhill
I am currently breaking in a set of DeVore O/93 and they are super easy to drive. The FirstWatt amps I have heard when driving higher efficiency speakers like the DeVores (most recently a (Sit 5) sounded somewhat frenetic and overly fast paced and relatively neutral.
What preamp will you be using?
How many hours on the speakers?
How are your speakers positioned relative to back and side walls?