Well your usage suggests near field monitoring, so at that point, room size becomes a minor consideration. If that doesn’t seem right re-rank your priorities on the room. Tracking, mixing and mastering are near field items. If room size comes into the equation, that implies that listeningis also involved. A totally different need. And different requirements.

I always wanted Adams A7, but got a pair of Dynaudio BM5As that I’m quite happy with. Woofer size is 7inch and for the purposes you mentioned no sub is required. And if it’s loud enough ( maybe the reason you ask about room size) , I can exceed 115db in the12x15 room they are in.