Here's an odd thing. I almost always listen to my 650's using EQ of some description. It's not because I perceive a weakness that I'm trying to compensate for as such, just that I have tended to prefer them (and all my other headphones too, for that matter) this way. Well, all morning, for the first time in years, I've been listening to classical music. At the moment it's a Mendelssohn violin concerto and I just can live with EQ of any description. They sound much better flat, with no EQ at all. Imaging is vastly superior in my opinion and the tonality of violins in particular is wonderful. It's not like my normal listening tastes are for the overly processed music currently sitting in the charts either. I tend to listen to more folky stuff like Bonnie 'Prince' Billy and the like. When I push the boat out it's usually for older Mike Oldfield, Yello & Royksöpp. Who knows what 'natural' is to those artists.
I've also been of the opinion that my Forza Audioworks cable added little to the experience. Not now. The aftermarket cable is far superior in resolution and, dare I say it, timing.
I'm guessing that these days ALL music is processed to such a degree that any sense of reality is extinguished from the final mix and so EQ is perfectly acceptable because the engineer has already decided there's no 'right' way to hear the sound. I don't know. This has been an eye-opener for me. Further scrutiny is required. Can't wait.
Am I alone in thinking this way?