I currently own the Sennheiser hd 650's[1] with a Schiit amp[2] and absolutely love the combo. I also have them on a harman curve. You can get the HD 6xx from Massdrop for cheaper and it's the exact same driver[3]. My partner uses the Sennheiser 58x's[4] as well as she doesn't like to use an amp and they are probably the greatest bang for your buck I've come across.
Yeap... I went with Sennheiser 560S and I'm not pleased lol compared to the 7506 that I've been using for over a year. The 560S everything sounds blended.
Will give them a chance/listen for a bit. Just funny you get this obsession like "I gotta buy it" then disappointed.
