Kr is right. However the interplay of sound pressure in a room is complex. I would experiment. Couches and chairs + decor have can be used to good effect on the ground. Try upper front corners to start. Enjoy the process. It will make you a better listener and then give more enjoyment to your listening.
Optimal vertical position of bass traps in corner?
Assuming I have a pair of 4ft tall bass traps, what is the ideal vertical location to place these in the corners? I notice that most people just place the bass traps on the floor but I was wondering if it perhaps would be better to put them in a different location like centered along the vertical or closer to the ceiling, etc. Does vertical placement of bass traps even make a difference?