When the MQA guys | Wilson (Peter McGrath) | ROON guys gave a demo of MQA on a $100K system, Wilson and T+A gear. I could not tell a difference. Now my ears were ringing bit from a blast of music from another demo, but I think my ears were still in good enough shape to be able hear a difference.
This given me an idea. I have a MQA supporting Lumin X1 DAC and a RAAL SR1a earphones. If there is any difference with MQA I will hear it on the SR1a via Tidal. It is hard to get more revealing than the SR1a. Something to do this Saturday evening.