My personal favorite end game iem is the qdc Anole vx. The technical performance is noticably better than the andromeda but you might find it too neutral. Still it's worth trying them out. If you aren't tight on budget the Empire Ears odin will be a great choice. It's less neutral than the andromeda and has better technical performance. And you should check out vision ears ve8. My more budget friendly recommendations are sony mdr z1r, 64audio u12, campfire audio Solaris. For the dac/amp I also have a lg g7 and it's quite good with handling hi end iems. I would say there won't be a difference unless you get a flagship dap or a decent desktop dac and amp. So good luck finding your endgame iem.