I have a mid 2015 13' Mac Book Pro. I also use Tidal Streaming. So, I got a Meridian Explorer 2 (E2) in order to hear MQA MASTER titles on Tidal. But the little green/blue light on the E2 never came on for me. Only a white light showing PCM streaming. Apparently, from what I've learned, the MBP's own internal DAC is not MQA compatible, and so I am not able to use the MQA option on the E2 with my Mac. MQA streaming seems to require MQA all the way down the line from the external DAC through the onboard DAC on the Mac. I'm a little taken back by this news. Does anybody have any experience with MQA compatibility with the 2015 Mac? I'd appreciate any info or insights on this issue. Thanks in advance.