Good to know! My goal for this afternoon is to analyse the R6 with the C9 so you’ve now got me rather excited about it! 
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LMK what you find! And with with and without c9.
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So, after playing around with A/B testing both the DX300 and the R6 with and without the C9, here’s what I’ve found.
What I’ve really noticed is just how warm the DX300 is on its own, especially compared to the R6.
The R6 without the C9 is harsh in the treble region and is frankly not super pleasant to listen to for extended periods. The R6 with the C9 on the other hand has a much more smoothed out treble section with a somewhat enhanced mid section (the bass seems to me just about the same, maybe a little warmer). I listened to the R6+C9 for several hours without any fatigue. Note that I chose the Class A/Solid State configuration for the C9 in all of this testing as I figured the R6 needed all the help it could get.
The DX300 without the C9 is already a much warmer device than the R6, but when you add the C9 (again in Class A/Solid-State) it really takes off. This might be my favorite listening combination - and reminds me of my RME ADI-2 Pro + Manley Absolute combination. It’s warm and lush without being overbearing in the bass/lower-mids. It’s still detailed, but some of that detail gets swallowed in how warm and inviting the music becomes.
Honestly, of all of these combinations, the only combination that I didn’t really enjoy was the R6 on its own. That C9 does some magical things.
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I’ve not been able to try the DX300 but I’ve heard great things.
About the R6, using the MSEB works pretty well without the C9. That said, R6+C9=yep!
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What MSEB settings do you use on the R6?
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I typically mess with sibilance and maybe some base. But I usually wind up going back to non-MSEB. Of course it depends on the cans used.
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bass, that is. (damn spellcheck…)
I have read in several other forums that the DX300 does not have the google play store installed in it’s default configuration, but I have not seen anyone confirm that the play store can actually be installed on the DX300. I find Mango very limited and prefer to use USB audio player pro instead, which requires the play store for licensing.
Can anyone confirm if the play store can actually be installed and run on the DX300?
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Google Play Store was the first thing I installed. No issues there.
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Yep! As @patch said, it can absolutely be installed from the pre-installed APK Pure app.
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