@simao first off, absolutely stunning listening room. Secondly, I feel like some of the focus in this thread around DAC cost isn’t really giving you all the tools that will be helpful to you in discerning different qualities of DACs at different price points, and in determining which of those qualities might be important for you. Here is a link to a recent Audiogon thread that I think does a good job describing these characteristics in higher end DACs that could be applied to DACs at pretty much any price point and could be helpful. There are a lot of comments on the thread, and I might suggest only reading those from the OP for efficiency. Good luck.