I've had my Pro 750's for a few years, and think it might be time for an upgrade. I've been lusting over the Denon D5000's for quite some time, and think I may bite the bullet and buy them. However, when I looked at comparisons between the Pro 900's (very similar to my 750's), I heard they were in fact about as good as each other, which would make getting the D5000's a bad idea. I am looking for a headphone that compliments my Pro 750's, rather than replaces them (meaning they have to be different enough to justify using both, but not polar opposites). However, I do think they should be a decent upgrade in quality. I am open to suggestions about different headphones that may fit the bill (my budget is about $450 or so), but I would take the D5000's if they fit what I want.
So my primary question is, would the D5000's be enough of an upgrade from the Pro 750's to justify the money?
I currently have a Fiio E7 amp, and listen to a mix of FLAC and Spotify (for music I don't own).
My genres of choice are electronic (house, trance, dubstep, DnB, etc.), classical, modern classical, metal, rock, folk, folk rock, ambient, and a bunch more.






