Sorry buddy, this has been discussed a few times before - no expensive audiophile gear can match the headphone sound of the Sound Devices 888, 833, MixPre-10 II, MixPre-6 II
This is not pathetic ZOOM or TASCAM!
This is a completely different approach to sound with high-tech adult internals with real 32-bit technology and the best and cleanest preamps in the world. And believe me - these are not childish audiophile knick-knacks)))
It's enough just not to be lazy and spend a little time and look at these devices on the manufacturer's website.
The only thing that can be added is that all this has been compared many times with expensive audiophile equipment and it did not stand up to any comparison with Sound Devices!
For example, the RME ADI-2/4 Pro SE not reach out of this level of sound. And also one of the best very serious professional and audiophile equipment that I also use in my work every day.
Therefore, when I write something, I know exactly what I am writing about and this is so!