I again tried the v-moda m-100 and the v-moda m-80 together to compare with classical music.
My intital analysis remains the same. The M-100 is much much more flat than the M-80. The M-100's bass is much more well-controlled, balanced and much less muddy. It's there when it's supposed to be and nowhere in sight when it's not supposed to be.
The highs on the M-100 is very crisp, non-fatiguing and not harsh at all. The mids are anything but laid back. The are very clear and present. The soundstage is very very wide, extremely detailed and the sound feels very natural and uncompressed. You really feel like the orchestra was live.
The M-80 on the other hands had it's bass slightly leaking into the mid range and the highs were rolled off. The sound stage was very little and quite narrow to be honest. The bass was not well-controlled and balanced. Too much bass. The sound was also feeling compressed compared to the M-100 and a bit artificial to be honest. Instrument reproduction and seperation also was lackluster on the M-80 whereas on the M-100 it was EXTREMELY EXCELLENT. Violins on the M-100 are completely beautifully reproduced with such accuracy, crispness and natural feel.
I have compared these headphones to multiple different classical well-recorded tracks of beethoven, bach, mozart and shostakovich. I have switched each one MULTIPLE times and listened with focus carefully. I made sure each of the headphones were worn properly on my head. They were also compared unamped vs amped. I even gave the M-80's the benefit of the doubt and did one comparison with them amped while the M-100 had no amp because many an amp makes them sound flat.
I have arrived to this conclusion...
M-100's are a far far superior headphone than the M-80 (not that those are bad headphones; they are also very good) in terms of flat response, sound stage, sound quality, highs, mids, bass, instrument reproduction and seperation.
And it is reflected both in the price and the amount of time/research & development spent by Val Kolton than any other headphone produced by V-Moda.
This is just my honest, objective and critical comparison analysis of both headphones. I really don't know why some prefer the M-80 over the M-100. Maybe their is still some audio science research that needs to be underway which will explain this bizzare phenomenon in the future.
I think I am doing a service bygoing against the grain viewpoint about these headphones being less flat than the M-80 and honestly feeling that they are far far more flatter and better sounding.
And expressing that viewpoint despite how others may not get my viewpoint...
Because than it opens questions to more research on to audio science and how sound can be percieved differently.
I also take very good care of my ear and hearing and have excellent hearing. So I know I am not hearing impaired and that's why I am maybe completely wrong.