I'd say test it as you have the speakers. Provided you're getting the right acoustical axis in the room, and your RTA is decent enough, you should be fine
Speakers "Too Big" for room
I have an office with KEF LS50 speakers. I’m gonna try to move in some large Infinity full-range speakers. Typically, conventional wisdom would say that these speakers are too big for the room. I’ll know for sure how they will sound but, why would anyone say that. Why can’t you put large speakers in a small room???