It's all about timbre and the timbral reproduction offered by the system. https://dictionary.cambridge.org/us/pronunciation/english/timbre
Timbre is what enables us to distinguish a violin from a viola, and a Stradivarius from a Guarneri. Adjectives to describe the particular timbral reproduction of a given component can be hard to come by, beyond the most obvious ones. Most languages are fairly impoverished, lexically speaking, on their literal level, so we have recourse to figurative descriptors. This can easily get out of hand (qv. most wine critics).