At higher volumes and bass-rich songs, a "clattering" or "vibrating" noise can possibly come from the bass reflex port.
These are flow noises, which are generated at very low frequencies and thus long strokes of the woofer as well as a high volume (sound pressure) at the same time.
Since we deliberately do not limit the low-frequency component and the volume on the hardware side, it is necessary to reduce the volume or the bass component for very dynamic recordings in the low-frequency range.