Focal Sopra 2 vs Sopra 3?

If you have the room, get the 3.  If your room isn't big, go with the 2 and you will be thrilled.  

The 3 will sound considerably better than the 2 if the room is big enough, but the 3 will sound considerably worse than the 2 in a small-medium sized room.  

Holy cow so well said and I absolutely agree.

3 feet is pretty close. 

Either way, bass trapping isn’t an option, it’s a necessity for every single setup if you want maximum performance in the bass region.  Important to note that bass trapping is NOT doing the same thing that equalizing or room correcting the bass does.