yes; some sort of qualification on this should be said...
which is faster:
A red ferrari 355 OR
a '67 voltswagon beetle GT
.....
when falling from a cargo plane?
I have no idea whether a the year 1967 had a VW, and whether the 'GT' designation is 'even a thing'...
the point is.. worrying about something that 'doesn't matter' cause the difference is irrelevant (they fall at the same speed give or take some wind resistance...)
ie not what we thought we were comparing.
The glare you may refer to is likey to be contributed to via a range of front end issues... noisy power lines, less accurate clocks, angle and proximity of DAC chips on the board in relation to other critical components etc..
I understand the question puts the two systems, in the real world against each other... there should be definite answer... but I'd hazard that neither player is affected in the way that you might be expecting...
it is the reason I bought one of these players... well thought out build and design and top R&D that has bypassed 'poor' music playback issues.
I have experienced what you are talking about. (on cheaper parts or less capable parts)
In fact, running a DAC Magic (ancient budget consumer class DAC) into my system at the moment, I'd say that the issue you have described is something I should expect.
Using an iFi AC purifier right next to the DACs power supply is known to fix many issues but can exacerbate exactly/'specifically' the phenomenon you are enquiring about... It is something I have 'thought about' /'am thinking about presently'
The FiiO M11+'s don't suffer any such issue to my awareness.
In fact the treble response from the M11+ (AKM version here) into Ultrasone Ed5 (known for revealing top end and 'brightness') are exceptional on the kit and I have spent the best part of a fortnight living with the M11+ as a primary player (someone challenged these players don't have enough volume output on Low Gain, so I have been driving my home over ear headphones non stop to see if any genre or song would catch me without enough volume. (not once have I left Low gain mode!)
Music loud clear and so beautifully clean an analogue...
Doesn't quite have the sound stage width of home seperates when fed 'line out' into high end kit... (and I really enjoy doing so... )
not a good as a Diablo/desktop kit,.. close enough to not care, and the sound from the FiiO is honest and musical and natural, that I will use it all day even if seven seconds of a cable plug in and a menu selection could switch it to being source (transport) into an outboard 'home' DAC.
buy weither with confidence