Term used to describe how well a particular sound system can accurately portray sound from the lowest amplitude (lowest volume) signals to those of very high amplitude or volume. A system with good dynamics must have a low noise floor in order to reproduce very soft, quiet passages. The system must also exhibit a wide dynamic range and extended headroom to faithfully reproduce the loudest, most intense sounds. A system with good dynamics must be able to reproduce the softest whisper and the loudest explosion with equal precision and ease.