Many wooden shelves use a cardboard back panel that can vibrate from noise. Pull the speakers away from the back of the shelf. If you are using a subwoofer, make sure neither the speaker nor the airflow vent is pointed at anything that can vibrate. Make sure your shelving, stands, or wall mounts are structurally sound. Make sure they are not wobbly, and that all screws, nuts, and bolts are securely fastened. If your shelving or stands are wobbly, you can try applying some blu-tack or felt pads under the legs to stabilize them and dampen the sound. [1] X Research source
If you must have bass, you may want to invest in a decent soundbar or speaker system with a good subwoofer.
If you cannot hear your television even at low volumes, you may want to invest in a better-quality sound system with more speakers.
If you notice your speakers are vibrating even with the volume is muted, this is usually a sign that your speakers are not working properly.
