Need definitions of: Dark; Warm; and Bright

A lot of none answers.

Warm refers to too much mid bass or a peak in the 100 to 250 hz region.

Dark refers to a trough in the 2000 to 3000 hz region

Bright is a rising response from 3000 Hz and above. Dull is a falling response from 3000 hz or anywhere from above.

My personal preference is for bass rising from 125 Hz down up 3 dB at 20 Hz and a falling response from 4000 hz down 6 dB at 20 kHz. This is at a 95 dB playback volume. The "right" frequency balance changes with volume. 

The tonality of a speaker system is based purely on it's frequency response. Things like enclosure resonances will show up as blips in the frequency response curve. Imaging is much more complicated depending on multiple factors. Then there is transient response and ringing. Tonality, however is totally "adjustable."  With many room control programs (a misnomer as it is really speaker control) you can program target curves to adjust tonality any old which way. Once you have programmed several hundred different curves you learn what doing this and that, here and there does to the sound. This is a great exercise for an audiophile.

My speakers are considered “warm” the treble is rolled off at 600hz, or mghz, or something like that.
the treble is not in your face, making your teeth grate, or pain.


I like the warm speaker, more relaxing, yes.
does it lose some of the airy sound, yes, it’s a sacrifice. 
To each their own.

@mijostyn

A lot of none answers.

None [sic] answers? Well, I gave a reference to Robert Harley’s book, with specific reference to a chapter meticulously dedicated to a variety of terms for different aspects of the qualities found in the experience of sound. Harley is an engineer, a reviewer, and an expert at listening and explaining. You have offered your own home-made terms for what these terms mean, and that is helpful, but really -- it’s not remotely in the same league as Harley. It's closer to a non-answer.

doogiehowser"Can you please explain your need to avoid use of something that would ease the ability for audiophiles to communicate with each other"

You are apparently, evidently, and obviously confused, disoriented, or unable to grasp even basic English, which is all that I can write. I never said anything "should be avoided" so I am not sure why you ask or got any contrary idea, impression, or belief.