I am a new Mojo owner. Can say that It is an upgrade from my Fiio X7 AM2. I have a question and am sure it must have been discussed before so pardon my ignorance. When I connect the Mojo with my Macbook Air the Bit Rate indicator stays fixed at 768 (purple) irrespective of the rate of the track played. Is this normal. Its works as perfectly with my lenovo Vibe P1 (only in the Airplane mode) though. I also connected it to my iPad and Iphone and I felt there was quite a lot of interference on my Iphone as compared to the iPad which was in the Airplane mode. I am using a shure SE846 for my initial listening. Thanks
That is because, Mac up-samples the data. You need an app that feeds bit perfect data into Mojo. There are a number of apps out there that can do bit-perfect: Vox, Audirvana +, Jriver, Amarra..
You can manually set the output bit-rate/depth on OS X without having to use additional software to do it. Under Applications/Utilities run the "Audio Midi Setup" tool and you can specify the output to be what you want it to. If you set it match your source files, then no re-sampling will occur.
Now, if you have lots of files at different bit-rates/depths, it's much easier to use one of many other music players to do this as they pretty much all reset these settings on the fly based on the file you're playing.