Help! I have several brands of cans, HE-400, Audeze LCD2, Grado 325i, Beyerdynamic DT990 and HD 600. On any given day they all sound nice. I'm using a Little Dot MKIII with 6 sets of tubes. I still want to upgrade the cans. Is the HE-500 worth the extra $$$ over the 400? I could live with out the Audeze as they aren't much better then the HE400. I like the 325i for the pure accuracy. The DT990 and the HD 600 could also go. I'm thinking if I end up with HE-500, Beyerdynamic T-90 and Grado 325, I should have all the presentations covered; YES? Is there another can I should be looking at?
I use the cans with Spotify and Foobar. I also use a JDS DAC, mostly old rock and roll, new country, smooth jazz and guitar stuff.