to me, the stark reality of the matter is that all speakers have a sound, and of course, any speaker in a room then has even more of a sound -- this truism is absolute and unavoidable
people like to say xyz is ’accurate’ - but no one really knows what 'accurate' it is... it is subjective, not objective... it is what we hear, as what we can measure to be ’accurate’ is woefully incomplete in explaining what we hear, how we feel a sounds different than b
that said, all experienced folks in this pursuit understand that speakers by far, by far, produce the greatest distortion (i.e. variation) from input to output, than any other part of the signal chain -- even based on rudimentary measurements of frequency and phase response -- so speaker choice is naturally the most intensely personal
what we can do (and should do), though, is hear real things (human voice, piano, acoustic guitar, drum set, cymbal shimmer, bowed bass, cello) and ideally hear them in the same or a similar room, then try to remember that sound, and compare to what similar reproduced sound/music of the same sounds like, and judge how close, how truthful it is to the real thing
when done in this way, many who judge harbeths feel they do quite well, and better than most