Just semantics but dark refers to a sound with treble and perhaps some midrange tipped down, warm to sound with an emphasis on midrange, where most music happens and bright is the opposite of dark.
Need definitions of: Dark; Warm; and Bright
Throughout thousands of postings, the descriptive adjectives of dark, warm, and bright are employed. What does each of them actually mean? Are these meanings solely subjective, or can they be seen in displays of frequency responses and distortion across an audio spectrum?