If you want to get the full potential out of your Speakers, you should definitely calibrate them! A room has a lot of resonances and cancelations that will mess up your frequency response. In this video I'll show you how to very easily fix this issue using Room Equalization Wizard and APO.
When I first did it, it took me like 2 hours to figure out, so I hope some people can do it in 10 minutes because of this video. And again, I absolutely recommend calibrating your speakers, especially because its free and really only takes 10 minuts.
REW:
APO: