Great advice here. I offer a small addition. I had a similar issue with my Mirage OMD-28s, and solved it by spending less than $200 on a Grant Fidelity Tube Buffer. I run it between my DAC and Preamp. It gives you some of that tube warmth and dynamic nature for a tiny investment. Worth a try, as its cheap and easy to resell if you don't like it.
Also, get the book 'Get Better Sound', as your room is uber important in sound quality. Good luck.
Mot
Also, get the book 'Get Better Sound', as your room is uber important in sound quality. Good luck.
Mot