I received my DX300 MKII last week, and I couldn't be more happy. I haven't posted here yet because I wanted to read all that has gone on before (on this thread) first. Now that I am caught up....
So far both DX300s I have had in my possession have been pretty spot on. No issues that I have read about, except the leather case (wheel rubbing) undocumented feature.
![Headphone Smile :) :)](https://cdn.head-fi.org/e/headfi/smily_headphones1.gif)
I had two of them because the first one I received had a hairline crack in the back glass. I didn't even notice it until 3 days in, and only then because I saw a glint while looking at it in the direct sunlight. Because I ordered it from Amazon (Urban HiFi), I was able to hang on to that one while the other was in transit.
Coming from the DX160, I have to agree with
@Whitigir's assessment/comparison. It is indeed like the DX160 but on steroids. I am not sure the hours of burn-in I have, because I haven't really set it down for the last week (and I mean pretty literally). I really have nothing to compare it to because this is the highest-end DAP I have possessed thus far.
For fun tuning, I am using the Dunu DK2001, and they sound fantastic. I also am using the TinHifi P1, but they are just as hard to drive as they were on the DX160 (probably harder than my Deva). High gain, D3 Filter, 53 volume. Boy, if I were to listen to these blind, I would NEVER know they were only $160. I also have iBasso IT07 on their way (probably Wednesday).
The only issue I have had thus far (and may be documented) is that I can't play DSD from coax out. It will not have any sound in Mango (android), but will play with lots of noise added from Neutron. Not a big deal, I can just use LO if needs be.
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