I would like to thank everyone for all the time and trouble they have put into this thread, and since I have benefited considerably, I would like to feedback with my experiences with the X1.
*I use the X1 exclusively to listen to Tidal CD Quality offline when I am traveling to and from work and when I go on holidays, and I bought it to replace my Samsung Galaxy 6 Edge+/Mojo which I was sonically happy with but I found a PIA to carry around and I really wanted a DAP so that I could separately use my phone and not have calls & messages interrupt my listening.
*I have had no problems at all with the X1 which I got just a few weeks ago and no problems listening to Tidal offline.
*I can happily live with the current sound quality with my new T5p G2's running SE but I would like a more open and detailed sound. After reading this thread I ordered some Double Helix 4-wire Silver Peptide pure OCC silver litz balanced cables so that I can take advantage of the balanced output with one chip driving each channel and the ACG. I am hoping this will give me the lift I am after but the Double Helix website notes that orders take 3-6 months to fulfill. I am also hoping that I will get a sound uplift if & when Tidal implements MQA.
*There are some on this thread that believe that running in components is a myth and I respect their opinion. I have been in the hi-fi hobby for decades and it has been my experience that it does make a difference and I found this to be the case with the X1 and Tp5. It has been pointed out that this improvement may be in my mind. Well I hope it is because my ears do not hear - they just sense and my brain tells me what I am hearing. So whatever makes something sound better to me is a good thing whether it is physical or psychoacoustical.
*Again from advice on this thread, I have found the following helpful in getting the best sound from the X1. I have a Hong Kong version with the EU volume restriction - defeating this by setting it to Variable line out has been great. I always use the Stand-alone mode when listening. I have set the Gain Setting to Low to allow me to use a higher volume setting while listening - I do think this gives a little more detail.
I cannot wait for the balanced Double Helix cables, but I guess I will have to and I am trying not to think about them.
Thanks for a great thread and a great forum. Knowing more about equipment and sharing it with friends greatly enhances this wonderful hobby.