I am really enjoying the Empyreans out of the Ferrum Orr/Hypsos right now.What amps are you guys using with your Empyreans and Elites? I'm still using my old Magni 3+ and Modi 3+ that I bought with my HD 6XX. I'm thinking of selling that stack and my Arya V2s and going for something like a Fiio K9 Pro ESS or a Hifiman EF400. I want something that has proper balanced jacks on it. My Elites came with a Copper PCUHD XLR cable and I've wanted to try it out. I also want something that will have as many cable options as possible in case I get something that has a 4.4mm cable etc.
If you are looking for all in one units as the samples you provide are, I would suggest some of the higher end Burson or Questyle pieces. Both have great synergy with the Mezes.