Dreamer. Sorry not had experience of Adam A7X and it's all subjective between a different pair of ears.
Working in the sound field can sometimes be a disadvantage because I have become very critical of what I listen too which makes it difficult to get satisfied.

I'm a lover of headphones and although have a pair pro Sennheisers we happen to purchase a wireless set from a UK store LIDL £20 because the wifes hearing is limited...but surprise to find the excellent clean mid's and a very tight low bass, these to my ears out perform my Sennheisers.