Dear friend,
I tested that the 3.5mm and 4.4mm headphone ports could not output at the same time.
Best regards
Thank you for taking the time to test this unit out.
I am very surprised how little attention this unit receives on the thread reviewing USB phone dongles. The THX version of this has a nice chip to reduce phone noise and works well. It took me a bit to figure how to get this unit to work with my iphone, but once I did it is very simple to use. The only issue is that sometimes I need to connect and reconnect the unit once or twice before it works but it always eventually will work. I use a third party OTG lightning cable as I needed a longer cable run and it works well.
I really enjoy that this unit has the AKM sound. I don't have any experience with R2R which is all the rage here, but AKM sounds silky smooth to me. I have some good ESS units but many sound a bit trebly while this unit sounds "just right".
I wonder what iphone apps people are using for SACD ISO files? I have been using the HiBy iphone app. It took me a bit to get that app to work the way I want, and the fix was to name my folders in the order I want them played. So a folder like 10 - Weather Report would play before 15 - Dave Brubeck. Then in the folder list I can play folder 10, which appears at the bottom of the list (non intuitive), and then goes on to folder 15.
I started this hobby with a portable FIIO DAC/AMP, then the X3 and then the X3II. Since then I haven't owned many FIIO units but now I am back.
I am looking forward to seeing AKM chips come back to your regular DAP line. Some version of the M11 with AKM would be great; hopefully you can include some capabilities of the Q3 like iphone native capabilities in DAC mode. And throwing in 2.5 and 4.4 jacks would be amazing. And an analog volume knob like the Q3. I really like the idea of DAP units that include Android so I can download from Amazon. So many units that offer this capability have very slow performance and don't support Android audio which I think are crucial features.
I also admire that the owner of FIIO monitors these threads himself from time to time. The only other company that I know of where this occurs is iBasso. A very classy thing to do.