hi detlpf:
you have factually described your listening experience, assuming that your observed frequences and spl are correct. you have also compared a cd to a recording. you have made no statement about a stereo system.
you have not used the word "bright", nor has it been defined.
as far as the words quantitative, qualitative, ambiguous and stylistically, they have a specific definition.
whereas words like hot, cold, sweet, sour do not have specific definitions.
i may consider hot any temperature exceeding 80 degrees, while you could consider hot as temperatures exceeding 90 degrees. if you use the word hot in a sentence, i am not sure what you mean, unless you posit a threshold temperature.
thus you could say the temerature is 90 degrees. it would not matter uf that was a designation of hot. all i need to know is the temperature.
audio communication could specify frequencies and sound pressure levels, without any adjectives. let the reader decide the significance of the numbers.