I have 2.5's in a room exactly the same size as yours. I have no problems with bass dominance and vocals are exceedingly smooth. However, I find the bass a bit loose and not entirely easygoing--it always sounds like the speakers are having to work hard to deliver serious bass (I get usable bass down to the mid- to high-20's in my room).
I have the speakers on the long wall, about 10' apart, which I generally prefer. My advice is to not get caught up in chasing cables and interconnects to solve your problem, at least not yet. Be patient with break-in and experiment with placement. I'm sure it will work out for you. Oh, do you have the spikes in?
I have the speakers on the long wall, about 10' apart, which I generally prefer. My advice is to not get caught up in chasing cables and interconnects to solve your problem, at least not yet. Be patient with break-in and experiment with placement. I'm sure it will work out for you. Oh, do you have the spikes in?