Yeah, you just have to realize that after a point, and that point depends entirely on each individual, you get to where you see huge diminishing returned after a certain price point. If you already have a ndh 30, I would imagine you are pretty much there. If you are happy where you are at then stay there. If not you might need to look at where in the line you can improve things, like whatever headphone amp you have. Throwing thousands of dollars on headphones is something I know I can't afford... I wish I could though, lol.