To increase the bass, one would normally move the speakers closer to the room boundaries - in this case, closer to the corners. You might want to remove the pillows from the corners, as they may well be absorbing a fair amount of bass energy. Now if I understand your description correctly, you may not have solid walls at the speaker end of the room, and the speakers were probably voiced with some boundary reinforcement in mind.
You can increase the relative bass balance by increasing the area covered by absorptive material in the room.
Finally, moving your listening position can make as much of a difference as moving the speakers. Try listening up against the opposite wall and see if the bass idoesn't have more impact there.
You haven't mentioned associated equipment, but the lack of bass could come from just about anywhere in the chain.
Normally the bass is relatively more prominent down near the floor than up at standing ear level, but evidently in your room at your listening position the opposite is true.
You can increase the relative bass balance by increasing the area covered by absorptive material in the room.
Finally, moving your listening position can make as much of a difference as moving the speakers. Try listening up against the opposite wall and see if the bass idoesn't have more impact there.
You haven't mentioned associated equipment, but the lack of bass could come from just about anywhere in the chain.
Normally the bass is relatively more prominent down near the floor than up at standing ear level, but evidently in your room at your listening position the opposite is true.