The Cayin iDAC-6 MK2 is a fantastic DAC that I use with my Cayin iHA-6 amplifier as well as my 2.1 speaker setup. Coming from a far inferior DAC, this beast really shines in any form of listening. Every single sound that comes out of it is pristine compared to what I had before this.
The AMOLED screen on the MK2 DAC is the reason I went for it. I know there are upgraded internals, but I'm no sound engineer, so I just know that it is better than the MK1.
The DAC and the amp both came with a pair of white gloves, which is awesome.
Customer service of MusicTeck is phenomenal. Cayin hadn't finished making the user manual for the iDAC-6 MK2 when I received my unit, but Anthony took it upon himself to contact the company directly and get an *almost finished* user manual for me.
The ONLY thing that bothers me about this DAC is that there is no way to switch outputs. It will play through the Single ended out as well as the XLR out at the same time, so I either have to turn off my speaker receiver or my headphone amplifier to use the other.