There are a number of reasons why you should put speakers away from walls.
Improved soundstage: One of the main benefits of placing speakers away from walls is that it can improve the soundstage. The soundstage is the perceived spatial location of the sound sources in a recording. When speakers are placed too close to walls, the sound waves can reflect off the walls and interfere with each other. This can create a muddy and indistinct soundstage. By placing speakers away from walls, you can reduce reflections and create a more accurate and realistic soundstage.
Better bass response: Another benefit of placing speakers away from walls is that it can improve the bass response. When speakers are placed too close to walls, the bass frequencies can become exaggerated. This is because the bass frequencies can reflect off the walls and reinforce each other. By placing speakers away from walls, you can reduce bass reinforcement and create a more balanced and natural sound.
Reduced reflections: When speakers are placed too close to walls, the sound waves can reflect off the walls and interfere with each other. This can create a muddy and indistinct sound. By placing speakers away from walls, you can reduce reflections and create a clearer and more focused sound.
Improved imaging: The imaging of speakers refers to the ability of the speakers to reproduce the soundstage accurately. When speakers are placed too close to walls, the imaging can be compromised. This is because the sound waves can reflect off the walls and interfere with each other. By placing speakers away from walls, you can improve the imaging of the speakers and create a more immersive and realistic listening experience.
Protection: Placing speakers away from walls can also help to protect them from damage. When speakers are placed too close to walls, they are more likely to be damaged by vibration or impact. By placing speakers away from walls, you can help to protect them from damage and extend their lifespan.
How far away should you place your speakers from the walls?
The ideal distance to place your speakers from the walls depends on a number of factors, including the size and shape of your room, the type of speakers you have, and your personal preferences. However, a good general rule of thumb is to place your speakers at least 3 feet away from the front wall and 1 foot away from the side walls.
If you have a small room, you may need to place your speakers closer to the walls. However, if you have a large room, you can place your speakers further away from the walls.
Experiment with different distances to see what sounds best to you.
Placing speakers away from walls can offer a number of benefits, including improved soundstage, better bass response, reduced reflections, improved imaging, and protection for your speakers. If you are serious about sound quality, then placing your speakers away from walls is a good idea.

