Question: How Far Should I Place My Speakers From Walls?
The distance of speakers from walls can make great differences in the number, strength and particular frequencies of secondary reflections - changing frequency balance, sonic spaciousness and definition. Most listeners prefer their speakers at least a few inches from all walls, but it is a personal choice determined by the listener.
The closer you place speakers to the boundary surfaces of your room, the greater the proportion of bass in their overall sound.
If you have the room to experiment, start by moving the speakers a few inches at a time. Listen to the same track in every location paying close attention to the quality of bass. Is it more or less boomy? Pick the location that has the best trade off for location and sound quality.