Mahler123 - I've just completed about two years of auditioning different cables, more recently implementing acoustic treatments and lastly, the final repositioning of my speakers.
During that time I have experienced what I refer to as "glare" at varying levels and with each change I made, while playing tracks having various file types (WAV, FLAC, DSD, AAC, MP3 etc.. and sample rates from 16/44 to 24/192.
A few tracks are in a couple of different formats and a couple of tracks were recorded at different sample rates - each seemed to present a similar amount of "glare" with each of the cables tried.
Surprisingly, I also found the level of "glare" varied each time I applied room treatments. I believe the final improvements were due to the reduction in reflected waves bouncing around the room, which would indicate that they too seemed to effect the "glare" that I was experiencing.
Once I had the acoustic treatments sorted - all that was left was to reposition my speakers for a final improvement in "glare"
So perhaps what I was experiencing and believing to be "glare" is not the same thing you are hearing.
From your description - "the hardness in full orchestral pieces" is also what I experienced - along with some very shrill moments on solo violin in the upper register and some really awful moments when sopranos hit their higher register with gusto - they now all seem to have been resolved and sound much smoother and extremely detailed AND - I can play the music at significantly higher volumes :-)
So perhaps we are talking about two different things - but what I experienced during this period on my system - neither the format or the sample rates seemed to make a scrap of difference to the particular degradation in sound that I experienced.
I hope you find a resolution to the issue, because what I experienced was very unpleasant and quite frustrating.
Regards...
During that time I have experienced what I refer to as "glare" at varying levels and with each change I made, while playing tracks having various file types (WAV, FLAC, DSD, AAC, MP3 etc.. and sample rates from 16/44 to 24/192.
A few tracks are in a couple of different formats and a couple of tracks were recorded at different sample rates - each seemed to present a similar amount of "glare" with each of the cables tried.
Surprisingly, I also found the level of "glare" varied each time I applied room treatments. I believe the final improvements were due to the reduction in reflected waves bouncing around the room, which would indicate that they too seemed to effect the "glare" that I was experiencing.
Once I had the acoustic treatments sorted - all that was left was to reposition my speakers for a final improvement in "glare"
So perhaps what I was experiencing and believing to be "glare" is not the same thing you are hearing.
From your description - "the hardness in full orchestral pieces" is also what I experienced - along with some very shrill moments on solo violin in the upper register and some really awful moments when sopranos hit their higher register with gusto - they now all seem to have been resolved and sound much smoother and extremely detailed AND - I can play the music at significantly higher volumes :-)
So perhaps we are talking about two different things - but what I experienced during this period on my system - neither the format or the sample rates seemed to make a scrap of difference to the particular degradation in sound that I experienced.
I hope you find a resolution to the issue, because what I experienced was very unpleasant and quite frustrating.
Regards...