This sounds about right:
In the context of high-end audio, the term transient response refers to the ability of an audio system to accurately reproduce quick, abrupt changes in sound, such as the attack and decay of musical notes or the leading edge of a percussive sound. A transient is a short-lived signal that contains a high amount of energy, and a good transient response is important for accurately reproducing the natural, lifelike quality of music.
A high-end audio system with a good transient response should be able to start and stop quickly, with minimal overshoot or ringing, and should be able to reproduce the subtle details and nuances of musical performances. This is in contrast to a system with a slow or sluggish transient response, which can make music sound dull, lifeless, and lacking in detail.
A variety of factors can affect the transient response of an audio system, including the design of the amplifiers, speakers, and other components, as well as the quality of the cables and interconnects. In general, a high-end audio system that is well-designed and well-implemented should have a good transient response, allowing it to accurately reproduce the dynamic and nuanced characteristics of music.