katatonicone1
100+ Head-Fier
Well, for me M11 was too analytical. I was never satisfied how it paired with A6 because it was much too bright with not enough bass impact and changing filters was not helping much. With R5 I can use black filter and treble sounds gorgeous, the bass amount has also increased. M11 was always thin on bass for me no matter which IEMs I used, so here's that. I did some A/B listening with my other IEMs: Dunu DK-2001, ThieAudio L3, BLON BL-03, and A6 is a clear winner to the point I'm selling Dunu and Legacy 3, and looking forward to LZ A7.In my case, LZ A6 does well with Fiio Q5(AM2) and Xduoo X3-II. As long as both are staffed by AK4490EN+OPAs I expected Fiio M11 or M11 Pro is a good way of upgrading.
What was wrong with M11 and what could it be with M11 Pro?
Do you use it single-ended or Pentacon?
AFAIK R5 is the most neutral sounding Hiby DAP. Where is the critical point?
So yeah, R5 may be most neutral Hiby dap, but M11 was so cold sounding for me that it makes night and day difference for me when paired with A6. I'm using it single ended for now, will switch to 4.4 for comparison in couple of days.